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242450 (2004 QY2)
Classification: Apollo [NEO, PHA]          SPK-ID: 2242450
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 126 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .47710594203246 1.1037e-07  
a 1.083921241931048 4.2214e-09 au
q .5667759767105413 1.2107e-07 au
i 37.03191664720405 1.8048e-05 deg
node 295.292117993975 1.0132e-05 deg
peri 104.9794991682685 1.5294e-05 deg
M 91.96296802615079 1.1868e-05 deg
tp 2459095.205546109146
(2020-Sep-02.70554611)
1.3333e-05 TDB
period 412.1876904835023
1.13
2.408e-06
6.593e-09
d
yr
n .8733885273907976 5.1022e-09 deg/d
Q 1.601066507151554 6.2355e-09 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      6134 days (16.79 yr)  
   first obs. used      2004-08-20  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-06 05:50:47  

Additional Information
 Earth MOID = .0481008 au 
 Jupiter MOID = 4.04005 au 
 T_jup = 5.441 
[ show covariance matrix ]

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 14.87   n/a E2021B55  
diameter diameter 2.914 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.274   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

242450 (2004 QY2)          Discovered 2004-Aug-20 by Siding Spring Survey at Siding Spring
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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