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91624 (1999 TP44)
Classification: Outer Main-belt Asteroid          SPK-ID: 2091624
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008152296170190962 3.5027e-08  
a 3.204532902384107 2.3981e-08 au
q 3.17840860107675 1.0682e-07 au
i 7.442328700256467 3.9472e-06 deg
node 222.2888965255916 2.8925e-05 deg
peri 249.4824333299243 0.00028617 deg
M 201.9371710294813 0.0002876 deg
tp 2460316.468122959440
(2024-Jan-06.96812296)
0.0016788 TDB
period 2095.296702092879
5.74
2.352e-05
6.439e-08
d
yr
n .1718133759483397 1.9287e-09 deg/d
Q 3.230657203691464 2.4177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1999-10-03  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:36  

Additional Information
 Earth MOID = 2.20168 au 
 Jupiter MOID = 1.77136 au 
 T_jup = 3.180 
[ 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 14.53   n/a MPCxxxxx  
diameter diameter 8.052 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91624 (1999 TP44)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TP44 = 2002 GT39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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