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10321 Rampo (1990 UN2)
Classification: Main-belt Asteroid          SPK-ID: 2010321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09500738112839141 1.6936e-08  
a 2.328644655565983 6.9739e-09 au
q 2.107406225262034 4.1583e-08 au
i 6.059287452920108 1.4981e-06 deg
node 53.9168376933885 2.835e-06 deg
peri 279.0648711603953 1.3699e-05 deg
M 286.3135435835077 1.3639e-05 deg
tp 2459662.167500738218
(2022-Mar-23.66750074)
4.9459e-05 TDB
period 1297.935942599523
3.55
5.8306e-06
1.596e-08
d
yr
n .2773634569969511 1.246e-09 deg/d
Q 2.549883085869932 7.6364e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2299  
   data-arc span      11245 days (30.79 yr)  
   first obs. used      1990-10-26  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 20:12:55  

Additional Information
 Earth MOID = 1.10688 au 
 Jupiter MOID = 2.72427 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457530.5 (2016-May-22.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0953384690167491 1.6986e-08  
q 2.106686248673117 4.171e-08 au
tp 2457063.297465799758
(2015-Feb-09.79746580)
4.7577e-05 TDB
node 53.95222502740967 2.8367e-06 deg
peri 278.449493594561 1.3618e-05 deg
i 6.057958615969268 1.4975e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2299  
   data-arc span      11245 days (30.79 yr)  
   first obs. used      1990-10-26  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 20:12:55  

Additional Information
 Jupiter MOID = 2.72427 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.885230113250711E-16 -7.009002766656118E-16 1.604031029262352E-13 7.82967304021307E-15 6.11835872801924E-15 -3.181932900794017E-15
q -7.009002766656118E-16 1.739739365960245E-15 -3.675187104553315E-13 -1.866226010381352E-14 -6.69400308586873E-15 7.62384154359141E-15
tp 1.604031029262352E-13 -3.675187104553315E-13 2.263550408054888E-9 -6.711081046271507E-12 6.284917127932746E-10 -1.834231757077629E-11
node 7.82967304021307E-15 -1.866226010381352E-14 -6.711081046271507E-12 8.047088164266334E-12 -9.328979418133299E-12 -9.965256872355015E-13
peri 6.11835872801924E-15 -6.69400308586873E-15 6.284917127932746E-10 -9.328979418133299E-12 1.854375526857249E-10 -4.115878417588629E-12
i -3.181932900794017E-15 7.62384154359141E-15 -1.834231757077629E-11 -9.965256872355015E-13 -4.115878417588629E-12 2.242634576202761E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.31   n/a MPO636221  
diameter diameter 3.875 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.2282 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Fatka, P.; Vokrouhlicky, D.; Scheeres, D.J.; et al. (2018) Icarus 304, 110-126.]
geometric albedo albedo 0.295   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10321 Rampo           Discovered 1990 Oct. 26 by T. Seki at Geisei.
Rampo Edogawa (Hirai Taro, 1894-1965), born in Nabari city, Mie prefecture, was a writer who specialized in Japan's mystery genre. He was popular with young readers, and one of his best-known novels is The Boy Detectives Club.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

Alternate Designations
 1990 UN2 = 1996 HU14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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