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12025 (1997 AJ1)
Classification: Main-belt Asteroid          SPK-ID: 2012025
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068681827368488 4.6812e-08  
a 2.324491978216555 8.072e-09 au
q 2.076077744718169 1.0907e-07 au
i 3.190125824761506 4.6647e-06 deg
node 333.5627484934402 6.2569e-05 deg
peri 189.76522990653 6.4847e-05 deg
M 284.169082984131 1.9034e-05 deg
tp 2459669.168087291109
(2022-Mar-30.66808729)
6.9209e-05 TDB
period 1294.465572719601
3.54
6.7427e-06
1.846e-08
d
yr
n .2781070486437579 1.4486e-09 deg/d
Q 2.57290621171494 8.9346e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1393  
   data-arc span      23049 days (63.10 yr)  
   first obs. used      1958-01-24  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48759  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:57:42  

Additional Information
 Earth MOID = 1.08473 au 
 Jupiter MOID = 2.40185 au 
 T_jup = 3.566 
[ 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 14.89   n/a E2021B10  
diameter diameter 4.497 km 0.978 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.105   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

12025 (1997 AJ1)          Discovered 1997-Jan-02 by Kobayashi, T. at Oizumi
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AJ1 = 1958 BL = 1990 BX2 = 1990 DM6 = 1990 DR5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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