"Pseudo-MPEC" for MESSENGER
Created Fri Aug 27 14:39:18 2004 using Find_Orb
Astrometry
Observing stations
Orbital elements
Residuals
Ephemeris
Astrometry:
MESSENGER C2004 08 3.37020 18 23 01.90 +37 19 08.4 12.2 R E12
MESSENGER C2004 08 3.37052 18 23 12.75 +37 18 38.9 12.1 R E12
MESSENGER C2004 08 3.37083 18 23 23.06 +37 18 10.3 12.3 R E12
MESSENGER C2004 08 3.37113 18 23 33.18 +37 17 42.6 12.4 R E12
MESSENGER C2004 08 3.45469 18 47 03.65 +35 59 07.0 13.8 R E12
MESSENGER C2004 08 3.45499 18 47 06.22 +35 58 55.1 13.8 R E12
MESSENGER C2004 08 3.45530 18 47 08.69 +35 58 43.0 13.9 R E12
MESSENGER C2004 08 3.45561 18 47 11.26 +35 58 30.3 13.6 R E12
MESSENGER C2004 08 3.45958 18 47 43.28 +35 55 51.3 13.7 R E12
MESSENGER C2004 08 3.45989 18 47 45.70 +35 55 39.3 13.3 R E12
MESSENGER C2004 08 3.46020 18 47 48.20 +35 55 26.3 13.2 R E12
MESSENGER C2004 08 3.46053 18 47 50.68 +35 55 14.2 13.5 R E12
MESSENGER C2004 08 3.60499 18 58 35.76 +34 31 54.8 15.4 R E12
MESSENGER C2004 08 3.60530 18 58 36.69 +34 31 45.3 15.0 R E12
MESSENGER C2004 08 3.60560 18 58 37.56 +34 31 36.3 15.4 R E12
MESSENGER C2004 08 3.60591 18 58 38.53 +34 31 26.0 15.3 R E12
MESSENGER C2004 08 4.14889 19 24 59.17 +32 39 33.3 17.5 R 735
MESSENGER C2004 08 4.15191 19 24 56.80 +32 39 44.7 17.1 R 735
MESSENGER C2004 08 4.15418 19 24 55.06 +32 39 53.1 17.3 R 735
MESSENGER C2004 08 4.15569 19 24 53.92 +32 39 58.2 17.1 R 735
MESSENGER C2004 08 4.16022 19 24 50.41 +32 40 13.9 17.7 R 735
Station data:
(735) George Observatory, Needville (N29.3749 W95.5936). Observers J.
Dellinger, W. G. Dillon. Measurer J. Dellinger. 0.46m f/4.5 Newtonian +
CCD.
(E12) Siding Spring Survey (S31.2735 E149.0642). Observers R. H. McNaught,
S. Larson, et.al. Measurer R. H. McNaught. 0.5-m Uppsala Schmidt + CCD.
Orbital elements (Geocentric):
MESSENGER
Perigee 2004 Aug 3.297522 TT
Epoch 2004 Aug 4.0 TT = JDT 2453221.5 Find_Orb
q 6314.07 km (2000.0) P Q
H 28.0 Peri. 311.75533 -0.83569969 0.51971820
Node 199.22330 0.50312749 0.85408030
e 1.2594867 Incl. 32.61836 -0.22015619 -0.02097173
From 21 observations 2004 Aug. 3-4; RMS error 0.764 arcseconds
Orbital elements (Heliocentric):
MESSENGER
Perihelion 2004 Apr 27.577575 TT
Epoch 2004 Aug 23.0 TT = JDT 2453240.5 Find_Orb
M 115.50708 (2000.0) P Q
n 0.98368850 Peri. 255.65429 -0.88982167 0.44857884
a 1.0013002 Node 310.92451 -0.36427363 -0.80869811
e 0.0757512 Incl. 6.35495 -0.27481285 -0.38050541
P 1.00 /365.96d H 28.0 G 0.15 q 0.9254505
From 21 observations 2004 Aug. 3-4; RMS error 0.764 arcseconds
Residuals in arcseconds:
040803 E12 1.7+ .21- 040803 E12 .37- .02+ 040803 E12 .33- .39+
040803 E12 .89+ .19+ 040803 E12 .20- .36- 040803 E12 .08- .14-
040803 E12 1.4- .38+ 040803 E12 .38- .07- 040804 735 .86+ .37+
040803 E12 1.1- .37+ 040803 E12 .51+ .80- 040804 735 .16- .04+
040803 E12 .01+ .38- 040803 E12 .62- .16+ 040804 735 .26- .08+
040803 E12 .84+ .17- 040803 E12 .53+ .35- 040804 735 .05- .17-
040803 E12 .43- .23+ 040803 E12 .28+ .07- 040804 735 .28- .50+
Ephemerides:
Da Mon Year RA Dec delta r elong mag
-- --- ---- ------------ ------------ ------ ------ ----- ---
4 Aug 2004 19 20 54.607 +32 36 43.47 296756 1.0157 125.1 16.6
5 Aug 2004 19 30 03.415 +32 38 35.08 663751 1.0170 125.8 18.3
6 Aug 2004 19 32 42.262 +32 37 55.29 .00684 1.0183 126.0 19.2
7 Aug 2004 19 33 58.347 +32 36 34.12 .00922 1.0195 126.0 19.9
8 Aug 2004 19 34 43.641 +32 34 39.47 0.0116 1.0208 126.0 20.4
9 Aug 2004 19 35 14.644 +32 32 13.42 0.0139 1.0220 125.9 20.8
10 Aug 2004 19 35 38.317 +32 29 17.35 0.0163 1.0233 125.8 21.1
11 Aug 2004 19 35 58.143 +32 25 52.57 0.0187 1.0245 125.7 21.4
12 Aug 2004 19 36 16.082 +32 22 00.48 0.0210 1.0257 125.7 21.7
13 Aug 2004 19 36 33.336 +32 17 42.47 0.0234 1.0269 125.6 21.9
14 Aug 2004 19 36 50.693 +32 13 00.05 0.0257 1.0281 125.5 22.1
15 Aug 2004 19 37 08.697 +32 07 54.75 0.0281 1.0293 125.4 22.3
16 Aug 2004 19 37 27.734 +32 02 28.21 0.0304 1.0305 125.3 22.5
17 Aug 2004 19 37 48.085 +31 56 42.08 0.0328 1.0316 125.2 22.6
18 Aug 2004 19 38 09.952 +31 50 38.08 0.0351 1.0328 125.0 22.8
19 Aug 2004 19 38 33.475 +31 44 17.92 0.0375 1.0339 124.9 22.9
20 Aug 2004 19 38 58.747 +31 37 43.27 0.0398 1.0351 124.8 23.1
21 Aug 2004 19 39 25.817 +31 30 55.74 0.0422 1.0362 124.7 23.2
22 Aug 2004 19 39 54.700 +31 23 56.78 0.0445 1.0373 124.5 23.3
23 Aug 2004 19 40 25.378 +31 16 47.70 0.0469 1.0384 124.4 23.4
24 Aug 2004 19 40 57.810 +31 09 29.59 0.0493 1.0395 124.3 23.5
25 Aug 2004 19 41 31.936 +31 02 03.25 0.0516 1.0406 124.1 23.6
26 Aug 2004 19 42 07.682 +30 54 29.24 0.0540 1.0416 124.0 23.7
27 Aug 2004 19 42 44.970 +30 46 47.77 0.0563 1.0427 123.8 23.8