2008-01-29

Object Data Page

Results

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Ephemeris / WWW_USER Thu Jan 21 04:51:36 2010 Pasadena, USA / Horizons

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Target body name: (2007 TU24) {source: JPL#75}

Center body name: Earth (399) {source: DE405}

Center-site name: GEOCENTRIC

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Start time : A.D. 2008-Jan-26 00:00:00.0000 UT

Stop time : A.D. 2008-Jan-30 00:00:00.0000 UT

Step-size : 60 minutes

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Target pole/equ : No model available

Target radii : (unavailable)

Center geodetic : 0.00000000,0.00000000,0.0000000 {E-lon(deg),Lat(deg),Alt(km)}

Center cylindric: 0.00000000,0.00000000,0.0000000 {E-lon(deg),Dxy(km),Dz(km)}

Center pole/equ : High-precision EOP model {East-longitude +}

Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole}

Target primary : Sun {source: DE405}

Interfering body: MOON (Req= 1737.400) km {source: DE405}

Deflecting body : Sun, EARTH {source: DE405}

Deflecting GMs : 1.3271E+11, 3.9860E+05 km^3/s^2

Small perturbers: Ceres, Pallas, Vesta {source: SB405-CPV-2}

Small body GMs : 6.32E+01, 1.43E+01, 1.78E+01 km^3/s^2

Atmos refraction: NO (AIRLESS)

RA format : HMS

Time format : CAL

EOP file : eop.100120.p100413

EOP coverage : DATA-BASED 1962-JAN-20 TO 2010-JAN-20. PREDICTS-> 2010-APR-12

Units conversion: 1 AU= 149597870.691 km, c= 299792.458 km/s, 1 day= 86400.0 s

Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO )

Table cut-offs 2: Solar Elongation ( 0.0,180.0=NO )

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Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG):

EPOCH= 2454485.5 ! 2008-Jan-20.00 (CT) Residual RMS= .40817

EC= .5294714834870934 QR= .9465668267838202 TP= 2454473.276525177

OM= 127.1645801863521 W= 333.5933668984904 IN= 5.803588133082948

Asteroid physical parameters (KM, SEC, rotational period in hours):

GM= n.a. RAD= n.a. ROTPER= n.a.

H= 20.294 G= .150 B-V= n.a.

ALBEDO= n.a. STYP= n.a.

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Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC APmag delta deldot S-O-T /r S-T-O

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$$SOE

2008-Jan-26 00:00 00 31 26.58 -13 01 03.7 n.a. 0.01821054004564 -8.9955710 57.9409 /T 121.1506

2008-Jan-26 01:00 00 31 37.63 -12 52 48.2 n.a. 0.01799409734540 -8.9909280 57.9784 /T 121.1238

2008-Jan-26 02:00 00 31 48.93 -12 44 20.6 n.a. 0.01777776840756 -8.9861144 58.0177 /T 121.0949

2008-Jan-26 03:00 00 32 00.48 -12 35 40.5 n.a. 0.01756155743598 -8.9811220 58.0591 /T 121.0640

2008-Jan-26 04:00 00 32 12.29 -12 26 47.4 n.a. 0.01734546884223 -8.9759417 58.1026 /T 121.0310

2008-Jan-26 05:00 00 32 24.38 -12 17 40.9 n.a. 0.01712950725842 -8.9705641 58.1483 /T 120.9957

2008-Jan-26 06:00 00 32 36.75 -12 08 20.4 n.a. 0.01691367755116 -8.9649793 58.1963 /T 120.9582

2008-Jan-26 07:00 00 32 49.42 -11 58 45.4 n.a. 0.01669798483636 -8.9591765 58.2467 /T 120.9182

2008-Jan-26 08:00 00 33 02.39 -11 48 55.4 n.a. 0.01648243449530 -8.9531443 58.2996 /T 120.8758

2008-Jan-26 09:00 00 33 15.67 -11 38 49.8 n.a. 0.01626703219184 -8.9468706 58.3550 /T 120.8307

2008-Jan-26 10:00 00 33 29.29 -11 28 27.9 n.a. 0.01605178389105 -8.9403426 58.4132 /T 120.7829

2008-Jan-26 11:00 00 33 43.24 -11 17 49.1 n.a. 0.01583669587917 -8.9335463 58.4742 /T 120.7322

2008-Jan-26 12:00 00 33 57.56 -11 06 52.7 n.a. 0.01562177478531 -8.9264671 58.5381 /T 120.6786

2008-Jan-26 13:00 00 34 12.24 -10 55 38.0 n.a. 0.01540702760478 -8.9190894 58.6052 /T 120.6219

2008-Jan-26 14:00 00 34 27.31 -10 44 04.2 n.a. 0.01519246172432 -8.9113961 58.6754 /T 120.5619

2008-Jan-26 15:00 00 34 42.78 -10 32 10.5 n.a. 0.01497808494951 -8.9033694 58.7491 /T 120.4985

2008-Jan-26 16:00 00 34 58.67 -10 19 56.1 n.a. 0.01476390553429 -8.8949900 58.8262 /T 120.4316

2008-Jan-26 17:00 00 35 14.99 -10 07 20.1 n.a. 0.01454993221314 -8.8862372 58.9071 /T 120.3610

2008-Jan-26 18:00 00 35 31.76 -09 54 21.4 n.a. 0.01433617423583 -8.8770888 58.9918 /T 120.2864

2008-Jan-26 19:00 00 35 49.02 -09 40 59.3 n.a. 0.01412264140533 -8.8675210 59.0806 /T 120.2078

2008-Jan-26 20:00 00 36 06.76 -09 27 12.4 n.a. 0.01390934411892 -8.8575082 59.1737 /T 120.1249

2008-Jan-26 21:00 00 36 25.02 -09 12 59.8 n.a. 0.01369629341295 -8.8470229 59.2713 /T 120.0374

2008-Jan-26 22:00 00 36 43.83 -08 58 20.3 15.73 0.01348350101169 -8.8360354 59.3735 /T 119.9453

2008-Jan-26 23:00 00 37 03.20 -08 43 12.5 15.69 0.01327097938043 -8.8245137 59.4807 /T 119.8481

2008-Jan-27 00:00 00 37 23.16 -08 27 35.2 15.65 0.01305874178366 -8.8124235 59.5932 /T 119.7457

2008-Jan-27 01:00 00 37 43.75 -08 11 26.9 15.61 0.01284680234852 -8.7997273 59.7111 /T 119.6378

2008-Jan-27 02:00 00 38 04.98 -07 54 46.1 15.56 0.01263517613424 -8.7863850 59.8348 /T 119.5241

2008-Jan-27 03:00 00 38 26.90 -07 37 31.2 15.52 0.01242387920823 -8.7723530 59.9646 /T 119.4043

2008-Jan-27 04:00 00 38 49.53 -07 19 40.5 15.47 0.01221292872949 -8.7575841 60.1008 /T 119.2780

2008-Jan-27 05:00 00 39 12.92 -07 01 12.1 15.42 0.01200234304022 -8.7420271 60.2438 /T 119.1449

2008-Jan-27 06:00 00 39 37.10 -06 42 04.2 15.37 0.01179214176633 -8.7256265 60.3940 /T 119.0045

2008-Jan-27 07:00 00 40 02.11 -06 22 14.6 15.32 0.01158234592827 -8.7083218 60.5518 /T 118.8566

2008-Jan-27 08:00 00 40 28.00 -06 01 41.1 15.27 0.01137297806293 -8.6900474 60.7177 /T 118.7005

2008-Jan-27 09:00 00 40 54.82 -05 40 21.3 15.22 0.01116406235807 -8.6707316 60.8920 /T 118.5360

2008-Jan-27 10:00 00 41 22.61 -05 18 12.7 15.17 0.01095562480082 -8.6502964 61.0754 /T 118.3623

2008-Jan-27 11:00 00 41 51.44 -04 55 12.6 15.11 0.01074769334177 -8.6286566 61.2684 /T 118.1790

2008-Jan-27 12:00 00 42 21.36 -04 31 18.1 15.06 0.01054029807650 -8.6057191 61.4716 /T 117.9855

2008-Jan-27 13:00 00 42 52.43 -04 06 26.0 15.00 0.01033347144672 -8.5813818 61.6856 /T 117.7812

2008-Jan-27 14:00 00 43 24.73 -03 40 33.1 14.94 0.01012724846342 -8.5555331 61.9111 /T 117.5652

2008-Jan-27 15:00 00 43 58.32 -03 13 35.6 14.88 0.00992166695447 -8.5280504 62.1489 /T 117.3370

2008-Jan-27 16:00 00 44 33.30 -02 45 29.8 14.82 0.00971676783999 -8.4987991 62.3998 /T 117.0956

2008-Jan-27 17:00 00 45 09.73 -02 16 11.4 14.75 0.00951259543860 -8.4676311 62.6646 /T 116.8402

2008-Jan-27 18:00 00 45 47.73 -01 45 36.0 14.69 0.00930919780868 -8.4343835 62.9444 /T 116.5699

2008-Jan-27 19:00 00 46 27.40 -01 13 38.8 14.62 0.00910662712863 -8.3988766 63.2401 /T 116.2836

2008-Jan-27 20:00 00 47 08.83 -00 40 14.6 14.55 0.00890494012128 -8.3609121 63.5529 /T 115.9801

2008-Jan-27 21:00 00 47 52.17 -00 05 17.7 14.48 0.00870419852781 -8.3202708 63.8839 /T 115.6584

2008-Jan-27 22:00 00 48 37.53 +00 31 17.9 14.41 0.00850446963716 -8.2767106 64.2345 /T 115.3170

2008-Jan-27 23:00 00 49 25.08 +01 09 38.8 14.33 0.00830582687819 -8.2299629 64.6061 /T 114.9545

2008-Jan-28 00:00 00 50 14.95 +01 49 51.9 14.25 0.00810835048155 -8.1797305 65.0003 /T 114.5694

2008-Jan-28 01:00 00 51 07.35 +02 32 05.1 14.17 0.00791212822040 -8.1256833 65.4188 /T 114.1600

2008-Jan-28 02:00 00 52 02.45 +03 16 26.4 14.09 0.00771725623866 -8.0674550 65.8633 /T 113.7244

2008-Jan-28 03:00 00 53 00.48 +04 03 04.8 14.01 0.00752383997697 -8.0046387 66.3360 /T 113.2607

2008-Jan-28 04:00 00 54 01.67 +04 52 10.0 13.92 0.00733199520738 -7.9367821 66.8389 /T 112.7666

2008-Jan-28 05:00 00 55 06.29 +05 43 52.3 13.83 0.00714184918755 -7.8633821 67.3744 /T 112.2398

2008-Jan-28 06:00 00 56 14.62 +06 38 22.9 13.74 0.00695354194665 -7.7838795 67.9451 /T 111.6778

2008-Jan-28 07:00 00 57 27.01 +07 35 53.9 13.64 0.00676722771389 -7.6976526 68.5538 /T 111.0776

2008-Jan-28 08:00 00 58 43.82 +08 36 38.3 13.54 0.00658307650070 -7.6040105 69.2035 /T 110.4365

2008-Jan-28 09:00 01 00 05.47 +09 40 49.9 13.44 0.00640127584518 -7.5021864 69.8974 /T 109.7510

2008-Jan-28 10:00 01 01 32.41 +10 48 43.7 13.34 0.00622203272444 -7.3913307 70.6390 /T 109.0177

2008-Jan-28 11:00 01 03 05.18 +12 00 35.6 13.23 0.00604557563545 -7.2705038 71.4320 /T 108.2328

2008-Jan-28 12:00 01 04 44.38 +13 16 42.2 13.12 0.00587215683669 -7.1386697 72.2806 /T 107.3923

2008-Jan-28 13:00 01 06 30.69 +14 37 21.3 13.00 0.00570205473212 -6.9946911 73.1889 /T 106.4919

2008-Jan-28 14:00 01 08 24.90 +16 02 51.3 12.89 0.00553557636218 -6.8373253 74.1614 /T 105.5272

2008-Jan-28 15:00 01 10 27.90 +17 33 31.2 12.77 0.00537305994500 -6.6652244 75.2029 /T 104.4935

2008-Jan-28 16:00 01 12 40.73 +19 09 40.4 12.64 0.00521487738140 -6.4769386 76.3180 /T 103.3859

2008-Jan-28 17:00 01 15 04.60 +20 51 38.3 12.52 0.00506143659943 -6.2709260 77.5116 /T 102.1996

2008-Jan-28 18:00 01 17 40.90 +22 39 43.4 12.39 0.00491318356664 -6.0455713 78.7886 /T 100.9298

2008-Jan-28 19:00 01 20 31.29 +24 34 13.3 12.26 0.00477060373969 -5.7992141 80.1535 /T 99.5719

2008-Jan-28 20:00 01 23 37.70 +26 35 23.4 12.13 0.00463422267139 -5.5301915 81.6105 /T 98.1217

2008-Jan-28 21:00 01 27 02.43 +28 43 25.8 11.99 0.00450460537599 -5.2368975 83.1631 /T 96.5756

2008-Jan-28 22:00 01 30 48.23 +30 58 27.9 11.86 0.00438235408649 -4.9178600 84.8140 /T 94.9312

2008-Jan-28 23:00 01 34 58.40 +33 20 31.3 11.72 0.00426810388420 -4.5718388 86.5644 /T 93.1869

2008-Jan-29 00:00 01 39 36.91 +35 49 29.2 11.59 0.00416251574686 -4.1979424 88.4139 /T 91.3432

2008-Jan-29 01:00 01 44 48.61 +38 25 04.9 11.46 0.00406626659101 -3.7957599 90.3602 /T 89.4025

2008-Jan-29 02:00 01 50 39.46 +41 06 49.4 11.33 0.00398003602656 -3.3655003 92.3983 /T 87.3697

2008-Jan-29 03:00 01 57 16.77 +43 53 59.4 11.21 0.00390448980310 -2.9081265 94.5207 /T 85.2523

2008-Jan-29 04:00 02 04 49.64 +46 45 34.7 11.09 0.00384026026527 -2.4254651 96.7165 /T 83.0611

2008-Jan-29 05:00 02 13 29.41 +49 40 16.9 10.98 0.00378792464963 -1.9202740 98.9722 /T 80.8097

2008-Jan-29 06:00 02 23 30.25 +52 36 27.0 10.87 0.00374798248229 -1.3962457 101.2711 /T 78.5147

2008-Jan-29 07:00 02 35 09.84 +55 32 04.5 10.78 0.00372083382220 -0.8579323 103.5938 /T 76.1955

2008-Jan-29 08:00 02 48 50.07 +58 24 45.2 10.69 0.00370676033699 -0.3105857 105.9194 /T 73.8730

2008-Jan-29 09:00 03 04 57.52 +61 11 40.0 10.61 0.00370591114914 0.2400777 108.2258 /T 71.5694

2008-Jan-29 10:00 03 24 03.17 +63 49 33.0 10.55 0.00371829507741 0.7881665 110.4906 /T 69.3068

2008-Jan-29 11:00 03 46 40.29 +66 14 40.3 10.50 0.00374378016818 1.3279254 112.6927 /T 67.1064

2008-Jan-29 12:00 04 13 18.67 +68 22 51.9 10.45 0.00378210058877 1.8540295 114.8129 /T 64.9875

2008-Jan-29 13:00 04 44 13.37 +70 09 43.7 10.42 0.00383287004727 2.3618277 116.8347 /T 62.9666

2008-Jan-29 14:00 05 19 07.91 +71 31 05.6 10.40 0.00389560023317 2.8475130 118.7449 /T 61.0567

2008-Jan-29 15:00 05 56 58.88 +72 23 51.5 10.39 0.00396972233126 3.3082081 120.5339 /T 59.2676

2008-Jan-29 16:00 06 35 56.33 +72 46 59.6 10.38 0.00405460961668 3.7419711 122.1957 /T 57.6053

2008-Jan-29 17:00 07 13 49.95 +72 42 06.9 10.39 0.00414959935867 4.1477353 123.7276 /T 56.0723

2008-Jan-29 18:00 07 48 48.99 +72 13 10.7 10.40 0.00425401268067 4.5252033 125.1300 /T 54.6683

2008-Jan-29 19:00 08 19 48.96 +71 25 24.1 10.42 0.00436717151722 4.8747152 126.4060 /T 53.3904

2008-Jan-29 20:00 08 46 32.53 +70 24 04.6 10.45 0.00448841227661 5.1971092 127.5603 /L 52.2336

2008-Jan-29 21:00 09 09 14.26 +69 13 48.9 10.48 0.00461709619756 5.4935881 128.5994 /L 51.1917

2008-Jan-29 22:00 09 28 23.78 +67 58 15.3 10.52 0.00475261665415 5.7656002 129.5307 /L 50.2572

2008-Jan-29 23:00 09 44 34.37 +66 40 06.5 10.56 0.00489440381849 6.0147393 130.3621 /L 49.4222

2008-Jan-30 00:00 09 58 17.08 +65 21 18.7 10.60 0.00504192715440 6.2426646 131.1018 /L 48.6785

$$EOE

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Column meaning:

TIME

Prior to 1962, times are UT1. Dates thereafter are UTC. Any 'b' symbol in

the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D.

date. Calendar dates prior to 1582-Oct-15 are in the Julian calendar system.

Later calendar dates are in the Gregorian system.

The uniform Coordinate Time scale is used internally. Conversion between

CT and the selected non-uniform UT output scale has not been determined for

UTC times after the next July or January 1st. The last known leap-second

is used over any future interval.

NOTE: "n.a." in output means quantity "not available" at the print-time.

R.A._(ICRF/J2000.0)_DEC =

J2000.0 astrometric right ascension and declination of target center.

Corrected for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f)

APmag =

Asteroid's approximate apparent visual magnitude by following definition:

APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi1 + G*phi2).

In principle, accurate to ~ +/- 0.1 magnitude. For solar phase angles > 90 deg,

the error could exceed 1 magnitude. No values are output for phase angles

greater than 120 degrees, since the extrapolation error could be large and

unknown. Units: NONE

delta deldot =

Range ("delta") and range-rate ("delta-dot") of target center with respect

to the observer at the instant light seen by the observer at print-time would

have left the target center (print-time minus down-leg light-time); the

distance traveled by a light ray emanating from the center of the target and

recorded by the observer at print-time. "deldot" is a projection of the

velocity vector along this ray, the light-time-corrected line-of-sight from the

coordinate center, and indicates relative motion. A positive "deldot" means the

target center is moving away from the observer (coordinate center). A negative

"deldot" means the target center is moving toward the observer.

Units: AU and KM/S

S-O-T /r =

Sun-Observer-Target angle; target's apparent solar elongation seen from

observer location at print-time. If negative, the target center is behind

the Sun. Angular units: DEGREES.

The '/r' column is a Sun-relative code, output for observing sites

with defined rotation models only.

/T indicates target trails Sun (evening sky)

/L indicates target leads Sun (morning sky)

NOTE: The S-O-T solar elongation angle is the total separation in any

direction. It does not indicate the angle of Sun leading or trailing.

S-T-O =

Sun-Target-Observer (~ PHASE ANGLE) angle: the vertex angle at target center

formed by a vector to the apparent center of the Sun and a vector intersecting

the observer at print-time. This measurable angle is within 20 arcseconds

(0.006 deg) of the reduced PHASE ANGLE at observer's location at print time.

The difference is due to down-leg stellar aberration affecting measured target

position but not apparent solar illumination direction. When computing phase,

Horizons uses the true phase angle, not S-T-O, but the resulting difference

in illuminated fraction is less than 0.001%.

Units: DEGREES

Computations by ...

Solar System Dynamics Group, Horizons On-Line Ephemeris System

4800 Oak Grove Drive, Jet Propulsion Laboratory

Pasadena, CA 91109 USA

Information: http://ssd.jpl.nasa.gov/

Connect : telnet://ssd.jpl.nasa.gov:6775 (via browser)

telnet ssd.jpl.nasa.gov 6775 (via command-line)

Author : Jon.Giorgini@jpl.nasa.gov

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