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101900 (1999 QH)
Classification: Main-belt Asteroid          SPK-ID: 2101900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494359858969748 3.2158e-08  
a 2.236036311490788 6.4074e-09 au
q 1.901892020781728 7.2217e-08 au
i 5.795536818393888 3.4239e-06 deg
node 22.8474963603497 2.9817e-05 deg
peri 283.7842437153503 3.1757e-05 deg
M 155.2943859604713 1.135e-05 deg
tp 2458673.670652445063
(2019-Jul-09.17065244)
3.8456e-05 TDB
period 1221.284104681371
3.34
5.2494e-06
1.437e-08
d
yr
n .2947717067798264 1.267e-09 deg/d
Q 2.570180602199849 7.3648e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1943  
   data-arc span      8412 days (23.03 yr)  
   first obs. used      1998-02-24  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47564  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:16  

Additional Information
 Earth MOID = .895525 au 
 Jupiter MOID = 2.67293 au 
 T_jup = 3.617 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO493573  
diameter diameter 3.400 km 0.841 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.168   0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

101900 (1999 QH)          Discovered 1999-Aug-18 by Kagawa, T. at Gekko
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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