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(2011 HH1)
Classification: Apollo [NEO]          SPK-ID: 3563861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455677.5 (2011-Apr-26.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6000285203661446 0.0023004  
a 1.899000197462991 0.0095451 au
q .7595459188042561 0.00055065 au
i 11.21368388012319 0.026352 deg
node 71.81851284985351 0.026748 deg
peri 223.3868668050038 0.03247 deg
M 339.1357190406337 0.18053 deg
tp 2455732.897078693048
(2011-Jun-20.39707869)
0.06167 TDB
period 955.8416304082882
2.62
7.2066
0.01973
d
yr
n .3766314298805188 0.0028396 deg/d
Q 3.038454476121726 0.015272 au
  Orbit Determination Parameters
   # obs. used (total)      47  
   data-arc span      13 days  
   first obs. used      2011-04-24  
   last obs. used      2011-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .46316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:02:53  

Additional Information
 Earth MOID = .0812937 au 
 Jupiter MOID = 2.24226 au 
 T_jup = 3.688 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 5.291694792879578E-6 -1.266695154710585E-6 -.0001418636990481119 6.150893215232021E-5 -7.467634074554474E-5 6.0616977338286E-5
q -1.266695154710585E-6 3.032155274509375E-7 3.395843021009347E-5 -1.472360704567971E-5 1.787533649021882E-5 -1.451016209222893E-5
tp -.0001418636990481119 3.395843021009347E-5 .003803192593555543 -.001648970860766946 .002001984724506419 -.001625065756746053
node 6.150893215232021E-5 -1.472360704567971E-5 -.001648970860766946 .0007154479150215169 -.0008684909700766007 .0007044728101746753
peri -7.467634074554474E-5 1.787533649021882E-5 .002001984724506419 -.0008684909700766007 .001054330531763776 -.0008553076008851539
i 6.0616977338286E-5 -1.451016209222893E-5 -.001625065756746053 .0007044728101746753 -.0008553076008851539 .0006944040296268651

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.7   n/a MPO200330  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2011-May-08 22:48 < 00:01 Earth 0.083638421384072 0.0828203935707089 0.0844564457907791 17.2723210839708 17.2704765824547 2455690.449684769 0.140865004095955 40782.9684643597 26.7847392084117 0.00861337753068142 237.133158023822 T 12 CATAB v2.0g-lin.ifort 2021-Apr-15 05:02:53 2021-Apr-15 05:02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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