"Pseudo-MPEC" for Gaia = 2013-074A = NORAD 39479

Created Wed Feb 12 10:51:06 2014 using Find_Orb

You can get customized ephemerides for this object from the Minor Planet Center's Distant Artificial Satellites Observation page, or from JPL's Horizons system. (DASO's ephemerides sometimes run out; you should notify MPC if that happens. Horizons is a very powerful and flexible system, but the DASO page may be easier if you just want to get ephemerides for observing.)

Note that the ephemerides on this page are based solely on astrometry, with no knowledge of maneuvers. They will be quite accurate until the next time Gaia moves. After that, they won't be very accurate at all.

An older version of this page is available here, giving orbits for just after launch, mid-December 2013, and mid-January 2014. There is also a Gaia pseudo-MPEC with observations up to 2016.

Astrometry:
Gaia         2C2014 01 11.43705606 51 43.070+16 33 03.53        x20.5 R D0504568
Gaia         2C2014 01 11.43824506 51 42.785+16 33 03.66        x20.4 R D0504568
Gaia         2C2014 01 11.44048306 51 42.239+16 33 03.91        x20.4 R D0504568
Gaia          C2014 01 21.25509 07 27 19.14 +17 40 58.2          20.8 V D0504G96
Gaia          C2014 01 21.26071 07 27 18.27 +17 41 01.9          20.2 V D0504G96
Gaia          C2014 01 21.26634 07 27 17.41 +17 41 05.3          20.9 V D0504G96
Gaia          C2014 01 21.27196 07 27 16.52 +17 41 08.5          20.4 V D0504G96
Gaia          C2014 01 21.33003 07 27 07.60 +17 41 21.8          20.7 V D0504G96
Gaia          C2014 01 21.33082 07 27 07.44 +17 41 21.8          20.8 V D0504G96
Gaia          C2014 01 27.91150 07 49 56.42 +18 19 17.3          20.0 V D0504033
Gaia          C2014 01 27.91511 07 49 56.20 +18 19 19.2          20.0 V D0504033
Gaia          C2014 01 27.94670 07 49 54.17 +18 19 32.0          20.1 V D0504033
Gaia          C2014 01 27.95031 07 49 53.93 +18 19 33.1          20.1 V D0504033
Gaia          C2014 02 08.08105 08 28 33.67 +19 00 20.3          20.7 V      033
Gaia          C2014 02 08.08466 08 28 33.94 +19 00 17.1          20.7 V      033
Gaia          C2014 02 08.11202 08 28 36.55 +18 59 50.6          20.5 V      033
Gaia          C2014 02 08.11563 08 28 36.97 +18 59 47.1          20.5 V      033
Gaia          C2014 02 09.90778 08 36 22.00 +19 02 05.2          20.3 V      033
Gaia          C2014 02 09.91139 08 36 21.96 +19 02 05.8          20.3 V      033
Gaia          C2014 02 09.95737 08 36 21.17 +19 02 06.3          20.8 V      033
Gaia          C2014 02 09.96285 08 36 21.11 +19 02 05.4          20.9 V      033

Station data:
(033) Karl Schwarzschild Observatory, Tautenburg (N50.98019 E11.71124)  Germany.
      Observer B. Stecklum.  1.34-m f/4 Schmidt + CCD.
(568) Mauna Kea (N19.8262 W155.4722)  US/Hawaii.   Observer D. J. Tholen.
    2.24-m University of Hawaii reflector.
(G96) Mt. Lemmon Survey (N32.44287 W110.78872)  US/Arizona.   Observers E. J.
    Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R. A.
    Kowalski, S. M. Larson, F. C. Shelly.  1.5-m reflector + CCD.

Orbital elements:  Gaia = 2013-074A = NORAD 39479
   Perihelion 2013 Aug 17.358579 +/- 0.724 TT =  8:36:21 (JD 2456521.858579)
Epoch 2013 Dec 20.0 TT = JDT 2456646.5   Earth MOID: 0.0001   Ve: 0.0297
M 150.755433 +/- 2.7                                          Find_Orb
n   1.209513118 +/- 0.015           Peri.   22.531616 +/- 2.4
a   0.872426791 +/- 0.00719         Node   267.908187 +/- 0.033
e   0.14138995 +/- 0.00722          Incl.    1.317584 +/- 0.015
P   0.81/297.63d           H 30.0   G  0.15   U  9.9
q 0.749074407 +/- 0.0123    Q 0.995779175 +/- 0.00188
18 of 21 observations 2014 Jan. 21-Feb. 9; mean residual 0".495.

Residuals in arcseconds:
140111 568(1511+  231+)   140121 G96 .001+ .294+    140208 033 .110+ .003-
140111 568(1511+  231+)   140121 G96 .682- .341+    140208 033 .113+ .524-
140111 568(1510+  231+)   140127 033 .442- .457-    140208 033 .075+ .390-
140121 G96 .055+ .559+    140127 033 .341- .588-    140209 033 .115+ .552+
140121 G96 .092- .510+    140127 033 .443+ 1.41-    140209 033 .237+ .456+
140121 G96 .081+ .472+    140127 033 .454+ 1.39-    140209 033 .242- .552+
140121 G96 .081- .557+    140208 033 .102+ .002+    140209 033 .054+ .653+

Ephemerides:
Date (UT)    RA              Dec         delta   r     elong  mag " sig PA
---- -- --  ------------   ------------  ------ ------ -----  --- ---- ---
2014 02 13  08 48 46.397   +19 06 40.85  .00970 0.9966 165.3 20.7    1  93
2014 02 14  08 52 55.717   +19 04 23.81  .00970 0.9968 165.3 20.7    2  91
2014 02 15  08 57 07.561   +19 01 32.72  .00971 0.9970 165.2 20.7    2  90
2014 02 16  09 01 21.646   +18 58 07.74  .00971 0.9972 165.1 20.7    3  89
2014 02 17  09 05 37.681   +18 54 09.03  .00971 0.9974 165.1 20.7    4  88
2014 02 18  09 09 55.379   +18 49 36.63  .00970 0.9976 165.0 20.7    5  87
2014 02 19  09 14 14.466   +18 44 30.40  .00970 0.9978 165.0 20.7    6  87
2014 02 20  09 18 34.695   +18 38 49.97  .00969 0.9980 165.0 20.7    8  86
2014 02 21  09 22 55.859   +18 32 34.63  .00968 0.9983 164.9 20.7    9  86
2014 02 22  09 27 17.808   +18 25 43.27  .00967 0.9985 164.9 20.7   11  85
2014 02 23  09 31 40.462   +18 18 14.35  .00966 0.9987 164.9 20.7   13  85
2014 02 24  09 36 03.832   +18 10 05.75  .00964 0.9989 164.9 20.7   15  84
2014 02 25  09 40 28.031   +18 01 14.80  .00963 0.9991 164.8 20.7   17  84
2014 02 26  09 44 53.289   +17 51 38.28  .00962 0.9993 164.8 20.7   19  83
2014 02 27  09 49 19.950   +17 41 12.49  .00960 0.9996 164.8 20.7   22  83
2014 02 28  09 53 48.454   +17 29 53.46  .00959 0.9998 164.8 20.7   24  82
2014 03 01  09 58 19.302   +17 17 37.17  .00958 1.0000 164.9 20.7   27  82
2014 03 02  10 02 53.006   +17 04 19.95  .00957 1.0003 164.9 20.7   31  81
2014 03 03  10 07 30.029   +16 49 58.65  .00956 1.0005 165.0 20.7   34  81
2014 03 04  10 12 10.744   +16 34 30.90  .00955 1.0007 165.0 20.7   38  80
2014 03 05  10 16 55.410   +16 17 55.11  .00954 1.0010 165.2 20.7   42  80
2014 03 06  10 21 44.165   +16 00 10.43  .00954 1.0012 165.3 20.7   47  79
2014 03 07  10 26 37.040   +15 41 16.64  .00953 1.0015 165.4 20.7   52  79
2014 03 08  10 31 33.973   +15 21 14.05  .00952 1.0017 165.6 20.7   57  78
2014 03 09  10 36 34.832   +15 00 03.34  .00951 1.0020 165.8 20.7   63  78
2014 03 10  10 41 39.427   +14 37 45.52  .00950 1.0022 166.0 20.7   69  77
2014 03 11  10 46 47.527   +14 14 21.84  .00949 1.0025 166.2 20.6   76  77
2014 03 12  10 51 58.864   +13 49 53.81  .00948 1.0028 166.5 20.6   83  76
2014 03 13  10 57 13.140   +13 24 23.12  .00946 1.0030 166.7 20.6   90  76
2014 03 14  11 02 30.029   +12 57 51.66  .00945 1.0033 167.0 20.6   99  75