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30944 (1994 GD1)
Classification: Main-belt Asteroid          SPK-ID: 2030944
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2256822328159893 5.1705e-08  
a 2.935534285774094 1.1935e-08 au
q 2.273036353652706 1.5102e-07 au
i 10.90963533289162 4.4203e-06 deg
node 67.421041557 2.7384e-05 deg
peri 142.2109343423807 2.8631e-05 deg
M 147.2443146309579 8.5171e-06 deg
tp 2458645.110370631607
(2019-Jun-10.61037063)
4.3042e-05 TDB
period 1837.084625308509
5.03
1.1204e-05
3.067e-08
d
yr
n .1959626655410845 1.1951e-09 deg/d
Q 3.598032217895482 1.4629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      15121 days (41.40 yr)  
   first obs. used      1979-04-25  
   last obs. used      2020-09-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4997  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:42:35  

Additional Information
 Earth MOID = 1.27831 au 
 Jupiter MOID = 1.41819 au 
 T_jup = 3.210 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.93   n/a E2021B10  
diameter diameter 9.357 km 0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30944 (1994 GD1)          Discovered 1994-Apr-08 by Endate, K., Watanabe, K. at Kitami
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1916-Apr-06 18:43 00:02 Jupiter 1.50412122318159 1.50412017008091 1.50412227629304 1.56260272541593 1.14693431943259 2420960.279745784 1.53302408494412 500.722186463068 122.146220346822 -46.8726958430571 1477190.41328257 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
1950-Oct-25 15:51 00:01 Jupiter 1.88601958907787 1.88601841766663 1.88602076050788 1.38463110911264 1.00945109985551 2433580.160529747 1.36200160429577 681.050285106301 123.216491244033 46.8522536151648 1537597.87250173 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
1977-Jun-04 03:23 < 00:01 Jupiter 1.80465062127586 1.80464971271338 1.80465152984398 2.76925049265316 2.59423158073298 2443298.641178028 0.794881199022532 183.949520409509 10.400180718526 -77.5258445362223 2507818.93879042 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
2012-Feb-24 07:41 < 00:01 Jupiter 1.44682655894779 1.44682614947393 1.44682696842412 2.31212652112773 2.04329625759174 2455981.820177217 0.233898559050605 120.797178011195 23.4278815756009 -73.0220570722252 1860769.23995181 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
2047-Jan-12 13:19 < 00:01 Jupiter 1.44799201915088 1.447991327545 1.44799271075833 1.93747220840775 1.60744253852415 2468723.054519229 0.725370495850369 188.132614292111 59.6531083235199 -60.1351829384203 1621277.28031239 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
2081-Sep-09 08:27 00:02 Jupiter 1.77195977599753 1.77195819076103 1.77196136164801 1.20473482575467 0.7038159914609 2481381.851876699 1.87494097349724 2033.3361059982 824.398991538928 88.4667365529959 999064.31656036 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
2108-Mar-22 02:29 00:02 Jupiter 1.92523037638356 1.92522830502595 1.92523244776043 2.89619294140675 2.74007581478726 2491071.603326356 2.02630133153783 333.95322856003 10.7886365175034 -74.5474270490105 2723456.77348392 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
2142-Nov-23 16:35 00:02 Jupiter 1.49989191801899 1.49989052271244 1.49989331336228 2.45602930334437 2.21418951514178 2503736.191094415 2.04109735241858 403.395880101404 17.1377740251284 -81.2764303179214 1848770.013194 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42
2177-Oct-12 04:02 00:02 Jupiter 1.40684218784676 1.40684141922744 1.40684295646793 2.20006353465268 1.90686454644834 2516477.667831264 2.37562521563805 228.220690782102 76.8047434321147 84.2339534584865 1503310.31604884 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 06:42:44 2021-Apr-13 06:42

Alternate Designations
 1994 GD1 = 1979 HB5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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