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455157 (1997 YM3)
Classification: Amor [NEO]          SPK-ID: 2455157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6585496237954064 1.238e-07  
a 3.304185155885544 4.4477e-07 au
q 1.128215264526753 4.877e-07 au
i 3.854976488794768 2.2055e-05 deg
node 299.6444687769053 0.00015947 deg
peri 77.95894482073589 0.00024106 deg
M 338.2376521113662 0.00025389 deg
tp 2459333.116706571575
(2021-Apr-28.61670657)
0.0015739 TDB
period 2193.789687127565
6.01
0.00044295
1.213e-06
d
yr
n .1640995953770598 3.3133e-08 deg/d
Q 5.480155047244334 7.3767e-07 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      8264 days (22.63 yr)  
   first obs. used      1997-11-06  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:28:58  

Additional Information
 Earth MOID = .146161 au 
 Jupiter MOID = .472979 au 
 T_jup = 2.771 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456570.5 (2013-Oct-05.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6654734521953889 1.1361e-07  
q 1.09543333970607 4.0313e-07 au
tp 2457150.349819515461
(2015-May-07.84981952)
0.001159 TDB
node 301.5102732278592 0.0001538 deg
peri 75.8979301111623 0.00022495 deg
i 3.930824851972912 2.2407e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      8264 days (22.63 yr)  
   first obs. used      1997-11-06  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:28:58  

Additional Information
 Jupiter MOID = .472979 au 
 T_jup = 2.771 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.290755916467073E-14 -4.418051297889275E-14 -1.268983758235237E-11 -1.021179641014548E-14 -2.784611837467194E-12 4.599015876225997E-14
q -4.418051297889275E-14 1.625125068346471E-13 1.656911859138369E-10 -9.704010265832885E-13 2.672547862391689E-11 -6.016495148445016E-14
tp -1.268983758235237E-11 1.656911859138369E-10 1.343224852419847E-6 -1.117017583651423E-8 1.902911871490139E-7 1.345029566003609E-9
node -1.021179641014548E-14 -9.704010265832885E-13 -1.117017583651423E-8 2.365573881070413E-8 -2.508411850121246E-8 7.622743004282581E-10
peri -2.784611837467194E-12 2.672547862391689E-11 1.902911871490139E-7 -2.508411850121246E-8 5.06042490911464E-8 -5.860311370443689E-10
i 4.599015876225997E-14 -6.016495148445016E-14 1.345029566003609E-9 7.622743004282581E-10 -5.860311370443689E-10 5.020653931282718E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.11   n/a E2021B25  

455157 (1997 YM3)          Discovered 1997-Dec-20 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: Last Updated: 2016-02-25

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