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17774 (1998 ER14)
Classification: Main-belt Asteroid          SPK-ID: 2017774
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816017573086635 2.7352e-08  
a 2.154909407479174 5.9848e-09 au
q 1.763574072239985 5.8075e-08 au
i 4.699038701856544 3.129e-06 deg
node 93.42853328039455 4.3342e-05 deg
peri 217.4649053183684 4.5311e-05 deg
M 247.4705929812717 1.5787e-05 deg
tp 2459361.664854719639
(2021-May-27.16485472)
5.1594e-05 TDB
period 1155.425511816931
3.16
4.8134e-06
1.318e-08
d
yr
n .31157352535335 1.298e-09 deg/d
Q 2.546244742718363 7.0716e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      13357 days (36.57 yr)  
   first obs. used      1983-10-01  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48296  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:40:49  

Additional Information
 Earth MOID = .751818 au 
 Jupiter MOID = 2.70868 au 
 T_jup = 3.676 
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Orbital Elements at Epoch 2456686.5 (2014-Jan-29.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819848594789983 2.7403e-08  
q 1.762588115618764 5.8208e-08 au
tp 2457050.421453432761
(2015-Jan-27.92145343)
4.6052e-05 TDB
node 93.47251942063063 4.3347e-05 deg
peri 217.4473606573724 4.5305e-05 deg
i 4.699003708152913 3.1287e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      13357 days (36.57 yr)  
   first obs. used      1983-10-01  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48296  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:40:49  

Additional Information
 Jupiter MOID = 2.70868 au 
 T_jup = 3.676 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.509475425128885E-16 -1.589768652352127E-15 3.555506055118532E-13 -3.148281323802377E-15 9.40260045312246E-14 7.15856252702689E-16
q -1.589768652352127E-15 3.388145787962695E-15 -6.575723835719053E-13 5.192762772125394E-15 -1.73050892320395E-13 -1.49788219606201E-15
tp 3.555506055118532E-13 -6.575723835719053E-13 2.120791364721589E-9 -2.443731003471589E-11 6.197288757314073E-10 2.695486124776175E-13
node -3.148281323802377E-15 5.192762772125394E-15 -2.443731003471589E-11 1.878937068529215E-9 -1.879128428499671E-9 -2.615282899840352E-11
peri 9.40260045312246E-14 -1.73050892320395E-13 6.197288757314073E-10 -1.879128428499671E-9 2.052574443442179E-9 2.61253139529265E-11
i 7.15856252702689E-16 -1.49788219606201E-15 2.695486124776175E-13 -2.615282899840352E-11 2.61253139529265E-11 9.788665501417472E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO302174  
diameter diameter 3.506 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.158   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17774 (1998 ER14)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 ER14 = 1998 FD127 = 2000 AY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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