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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0950073794477351 1.7241e-08  
a 2.32864465523844 7.0028e-09 au
q 2.107406228879261 4.216e-08 au
i 6.059287501585048 1.4992e-06 deg
node 53.91683763000265 2.836e-06 deg
peri 279.064871014317 1.3701e-05 deg
M 286.3135440844096 1.3662e-05 deg
tp 2459662.167498876226
(2022-Mar-23.66749888)
4.9548e-05 TDB
period 1297.935942325675
3.55
5.8548e-06
1.603e-08
d
yr
n .2773634570554713 1.2511e-09 deg/d
Q 2.549883081597619 7.6681e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2243  
   data-arc span      11205 days (30.68 yr)  
   first obs. used      1990-10-26  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:17:39  

Additional Information
 Earth MOID = 1.10688 au 
 Jupiter MOID = 2.72427 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457486.5 (2016-Apr-08.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09536210503510832 1.7293e-08  
q 2.106601027857053 4.2288e-08 au
tp 2457063.309053741490
(2015-Feb-09.80905374)
4.7603e-05 TDB
node 53.95255737021752 2.8377e-06 deg
peri 278.4476995879986 1.3615e-05 deg
i 6.057987071907391 1.4986e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2243  
   data-arc span      11205 days (30.68 yr)  
   first obs. used      1990-10-26  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:17:39  

Additional Information
 Jupiter MOID = 2.72427 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.990367454023014E-16 -7.234881239915426E-16 1.666569760875002E-13 7.884538857185406E-15 6.750417810730571E-15 -3.250143914407801E-15
q -7.234881239915426E-16 1.788245225493315E-15 -3.812918153603678E-13 -1.878504125178994E-14 -8.145759353126917E-15 7.775260280660281E-15
tp 1.666569760875002E-13 -3.812918153603678E-13 2.266001371172912E-9 -6.642609128861223E-12 6.284774639853513E-10 -1.840073466293863E-11
node 7.884538857185406E-15 -1.878504125178994E-14 -6.642609128861223E-12 8.052383616903006E-12 -9.319747705311517E-12 -1.000508148189894E-12
peri 6.750417810730571E-15 -8.145759353126917E-15 6.284774639853513E-10 -9.319747705311517E-12 1.853596749297226E-10 -4.122074385287413E-12
i -3.250143914407801E-15 7.775260280660281E-15 -1.840073466293863E-11 -1.000508148189894E-12 -4.122074385287413E-12 2.245794047771031E-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 14.32   n/a MPO614063  
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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