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74108 (1998 QP37)
Classification: Main-belt Asteroid          SPK-ID: 2074108
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1050920604983085 3.7898e-08  
a 2.287683719679642 7.8683e-09 au
q 2.047266323810074 8.4698e-08 au
i 3.358206912427752 3.0161e-06 deg
node 289.0202606104695 6.4886e-05 deg
peri 277.3129102119842 6.6429e-05 deg
M 227.7524024348496 1.5137e-05 deg
tp 2459464.777556101185
(2021-Sep-07.27755610)
5.3703e-05 TDB
period 1263.840880845393
3.46
6.5203e-06
1.785e-08
d
yr
n .2848459845350099 1.4696e-09 deg/d
Q 2.528101115549211 8.6952e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1639  
   data-arc span      7854 days (21.50 yr)  
   first obs. used      1998-08-03  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49414  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:11:12  

Additional Information
 Earth MOID = 1.04595 au 
 Jupiter MOID = 2.44698 au 
 T_jup = 3.591 
[ 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 MPO502605  
diameter diameter 2.824 km 0.517 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.73 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.351   0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74108 (1998 QP37)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QP37 = 2000 AV22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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