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1085 Amaryllis (1927 QH)
Classification: Main-belt Asteroid          SPK-ID: 2001085
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04195263144378142 2.2126e-08  
a 3.18543748544836 1.2361e-08 au
q 3.051800000634139 7.4956e-08 au
i 6.640009395702887 1.3678e-06 deg
node 139.9608765094453 7.9364e-06 deg
peri 129.2167481305838 1.7611e-05 deg
M 280.5428715702541 1.8077e-05 deg
tp 2459854.834365417637
(2022-Oct-02.33436542)
0.00010433 TDB
period 2076.596207428244
5.69
1.2087e-05
3.309e-08
d
yr
n .1733606171061254 1.0091e-09 deg/d
Q 3.319074970262581 1.288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3621  
   data-arc span      41362 days (113.24 yr)  
   first obs. used      1908-05-01  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:19:04  

Additional Information
 Earth MOID = 2.04099 au 
 Jupiter MOID = 1.74793 au 
 T_jup = 3.186 
[ 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 9.85   n/a E2021B10  
diameter diameter 69.281 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.111 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Mansego, E.A.; Rodriguez, P.B.; de Haro, J.L.; Chiner, O.R.; et al. (2016) Minor Planet Bull. 43, 332-336.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.067   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1085 Amaryllis (1927 QH)          Discovered 1927-Aug-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 QH = 1964 CL = A908 HB = A915 QA = A921 RC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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