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39775 (1997 GB30)
Classification: Main-belt Asteroid          SPK-ID: 2039775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1156870187773471 4.609e-08  
a 2.761938634454502 1.429e-08 au
q 2.442418187788484 1.2899e-07 au
i 9.122029472896031 4.244e-06 deg
node 77.80571999550472 3.1239e-05 deg
peri 159.501009439697 3.6802e-05 deg
M 341.9554833591345 2.0078e-05 deg
tp 2459084.535389393776
(2020-Aug-23.03538939)
9.3527e-05 TDB
period 1676.561405543312
4.59
1.3011e-05
3.562e-08
d
yr
n .2147252100696767 1.6664e-09 deg/d
Q 3.081459081120521 1.5943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1234  
   data-arc span      8415 days (23.04 yr)  
   first obs. used      1997-04-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56025  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:08  

Additional Information
 Earth MOID = 1.43225 au 
 Jupiter MOID = 1.93528 au 
 T_jup = 3.313 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457067.5 (2015-Feb-14.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1159240700409705 4.6267e-08  
q 2.443646258908672 1.2961e-07 au
tp 2457403.659991601426
(2016-Jan-16.15999160)
9.3053e-05 TDB
node 77.8493720969563 3.1234e-05 deg
peri 158.6699952148102 3.6699e-05 deg
i 9.121275725582747 4.243e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1234  
   data-arc span      8415 days (23.04 yr)  
   first obs. used      1997-04-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56025  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:08  

Additional Information
 Jupiter MOID = 1.93528 au 
 T_jup = 3.313 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.140677118860701E-15 -5.968251870205223E-15 -1.76518683749241E-12 6.793542687355285E-16 -3.254885266667275E-13 -1.524265277835673E-15
q -5.968251870205223E-15 1.679820972231023E-14 4.786423778356188E-12 4.938627343372181E-16 8.695059079694481E-13 4.077957921523007E-15
tp -1.76518683749241E-12 4.786423778356188E-12 8.658934717137568E-9 -9.55507071660837E-12 1.825104327700102E-9 5.063647919315485E-12
node 6.793542687355285E-16 4.938627343372181E-16 -9.55507071660837E-12 9.755459911102289E-10 -9.651657961403984E-10 -4.21350086023889E-11
peri -3.254885266667275E-13 8.695059079694481E-13 1.825104327700102E-9 -9.651657961403984E-10 1.346783960040041E-9 4.26853617824949E-11
i -1.524265277835673E-15 4.077957921523007E-15 5.063647919315485E-12 -4.21350086023889E-11 4.26853617824949E-11 1.800277350026356E-11

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 14.2   n/a MPO436049  
diameter diameter 4.532 km 0.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39775 (1997 GB30)          Discovered 1997-Apr-13 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 GB30 = 1999 VJ194 = 1999 WW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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