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181735 (1995 UX16)
Classification: Main-belt Asteroid          SPK-ID: 2181735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966608309392899 5.6771e-08  
a 2.358903952722103 8.8203e-09 au
q 1.894999941273799 1.3806e-07 au
i 2.815028515960647 5.4257e-06 deg
node 152.2384677730347 6.6632e-05 deg
peri 207.8604221636972 6.746e-05 deg
M 6.95818246698014 9.8063e-06 deg
tp 2459174.922556941100
(2020-Nov-21.42255694)
3.6006e-05 TDB
period 1323.316763378917
3.62
7.4221e-06
2.032e-08
d
yr
n .2720437086286029 1.5258e-09 deg/d
Q 2.822807964170407 1.0555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      9153 days (25.06 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-11-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55896  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:49  

Additional Information
 Earth MOID = .890499 au 
 Jupiter MOID = 2.62889 au 
 T_jup = 3.525 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457751.5 (2016-Dec-29.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974477541172074 5.6664e-08  
q 1.89308231578507 1.3789e-07 au
tp 2457852.563608597118
(2017-Apr-09.06360860)
3.4606e-05 TDB
node 152.2866464955265 6.6688e-05 deg
peri 208.1035597838691 6.751e-05 deg
i 2.814018200960884 5.4242e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      9153 days (25.06 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-11-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55896  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:49  

Additional Information
 Jupiter MOID = 2.62889 au 
 T_jup = 3.525 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.210782131752811E-15 -7.806261487156379E-15 -5.266444482290958E-13 -1.927486578078655E-15 -4.815445408544992E-14 -3.822642116973006E-15
q -7.806261487156379E-15 1.901303158904896E-14 1.258727632133468E-12 3.709510510156242E-15 1.108310535125231E-13 9.362851492623258E-15
tp -5.266444482290958E-13 1.258727632133468E-12 1.197567926695462E-9 7.941589462032777E-12 3.629326706278581E-10 1.031283547653262E-12
node -1.927486578078655E-15 3.709510510156242E-15 7.941589462032777E-12 4.447286038454508E-9 -4.438732706044842E-9 1.334614421764375E-11
peri -4.815445408544992E-14 1.108310535125231E-13 3.629326706278581E-10 -4.438732706044842E-9 4.55763786544692E-9 -1.311910045902624E-11
i -3.822642116973006E-15 9.362851492623258E-15 1.031283547653262E-12 1.334614421764375E-11 -1.311910045902624E-11 2.942173294102914E-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 17.40   n/a E2021B55  

181735 (1995 UX16)          Discovered 1995-Oct-17 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1995 UX16 = 2002 RW21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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