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488 Kreusa (A902 MC)
Classification: Main-belt Asteroid          SPK-ID: 2000488
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 109 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1582772443085416 1.9143e-08  
a 3.173791268412005 1.1206e-08 au
q 2.671452332437242 5.7811e-08 au
i 11.50794823456431 4.8409e-07 deg
node 84.20978378021422 2.4718e-06 deg
peri 72.33930142252173 6.612e-06 deg
M 116.2342586898422 8.0209e-06 deg
tp 2458533.696888445314
(2019-Feb-19.19688845)
4.3979e-05 TDB
period 2065.21831743454
5.65
1.0938e-05
2.995e-08
d
yr
n .1743157113032002 9.2319e-10 deg/d
Q 3.676130204386768 1.2979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2757  
   data-arc span      43711 days (119.67 yr)  
   first obs. used      1901-02-13  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:28:26  

Additional Information
 Earth MOID = 1.70963 au 
 Jupiter MOID = 1.51397 au 
 T_jup = 3.151 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455866.5 (2011-Nov-01.0) TDB
Reference: JPL 109 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613643562362922 1.9375e-08  
q 2.662889558397905 5.8972e-08 au
tp 2456463.711225699516
(2013-Jun-20.21122570)
3.8693e-05 TDB
node 84.33947875810621 2.4782e-06 deg
peri 70.17937725769063 6.5737e-06 deg
i 11.49355577752685 4.8335e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2757  
   data-arc span      43711 days (119.67 yr)  
   first obs. used      1901-02-13  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:28:26  

Additional Information
 Jupiter MOID = 1.51397 au 
 T_jup = 3.151 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.754081440198715E-16 -1.127589129515991E-15 3.616625369454107E-13 9.831445374453662E-15 2.441115850717167E-14 1.419285494110488E-15
q -1.127589129515991E-15 3.477710992778047E-15 -9.978321669015951E-13 -3.232459091020191E-14 -5.358267686536753E-14 -4.795825660066399E-15
tp 3.616625369454107E-13 -9.978321669015951E-13 1.49716661214633E-9 -2.624088721506328E-11 2.31649217382387E-10 -5.006020937090705E-12
node 9.831445374453662E-15 -3.232459091020191E-14 -2.624088721506328E-11 6.141460449746443E-12 -9.825792619885971E-12 1.065422085399956E-12
peri 2.441115850717167E-14 -5.358267686536753E-14 2.31649217382387E-10 -9.825792619885971E-12 4.321313219711656E-11 -1.750305334351882E-12
i 1.419285494110488E-15 -4.795825660066399E-15 -5.006020937090705E-12 1.065422085399956E-12 -1.750305334351882E-12 2.336270928916566E-13

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 7.97   n/a E2021B10 IRAS observations used: 20
diameter diameter 168.117 km 2.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 32.645 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2014) Minor Planet Bull. 41, 226-230.]
[Pilcher, F. (2019) Minor Planet Bull. 46, 360-363.]
geometric albedo albedo 0.047   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.691   0.006 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.94, mean=12.60, max.=17.25) deg.
U-B UB 0.368   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.94, mean=12.60, max.=17.25) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

488 Kreusa (A902 MC)          Discovered 1902-Jun-26 by Wolf, M. and Carnera, L. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A902 MC = 1947 KH = 1977 YD = A901 CA = A905 XA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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