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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09489386176902385 2.3429e-08  
a 2.328819299277448 7.7341e-09 au
q 2.107828642606779 5.4157e-08 au
i 6.05907539614678 1.5024e-06 deg
node 53.91770666375698 2.8422e-06 deg
peri 279.0286433196309 1.372e-05 deg
M 231.978287774416 1.3963e-05 deg
tp 2459662.118541757629
(2022-Mar-23.61854176)
5.1043e-05 TDB
period 1298.081959253288
3.55
6.4665e-06
1.77e-08
d
yr
n .2773322573615363 1.3815e-09 deg/d
Q 2.549809955948117 8.468e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      11105 days (30.40 yr)  
   first obs. used      1990-10-26  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:36:13  

Additional Information
 Earth MOID = 1.10615 au 
 Jupiter MOID = 2.72512 au 
 T_jup = 3.559 
[ 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 14.31   n/a E2021B10  
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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