Ephemerides of PSR J2021+4026 derived from LAT Data covering MJD 54710–60000.
| Parameters . | . | . | . | . | . | . |
|---|---|---|---|---|---|---|
| Right ascension . | 20:21:29.99 . | |||||
| Declination . | +40:26:45.13 . | |||||
| Valid MJD range | 54710–55850 | 55850–56980 | 56990–58130 | 58140–58900 | 58920–59500 | 59550–60000 |
| Pulse frequency, f(s−1) | 3.769066845(7) | 3.768952744(6) | 3.768891254(7) | 3.768823695(3) | 3.768775022(1) | 3.768734495(7) |
| First derivative,|$\dot{f}(10^{-13} s^{-2})$| | −7.762(1) | −8.206(1) | −7.699(1) | −8.132(1) | −7.822(4) | −8.173(3) |
| Second derivative,|$\ddot{f}(10^{-21} s^{-3})$| | 0.51(3) | 0.56(2) | −0.12(1) | 1.98(3) | 2.19(1) | −13.2(1) |
| Third derivative,|$\dddot{f}(10^{-28} s^{-4})$| | −0.33(4) | 69.3(3) | −0.31(4) | 3.6(1) | 0.4(2) | 169(6) |
| Fourth derivative,f(4)(10−35s−5) | −0.11(1) | −1.14(7) | 0.38(5) | −8.3(3) | −5.6(8) | −94(2) |
| Fifth derivative,f(5)(10−41s−6) | 0.13(3) | −0.22(1) | 0.058(1) | −1.26(9) | 0.3(1)1 | 281(9) |
| Sixth derivative,f(6)(10−48s−7) | −0.26(5) | 0.11(1) | −0.08(1) | 2.9(3) | −1.8(4) | −316(9) |
| Seventh derivative, f(7)(10−55 s−8) | 0.23(3) | 0.51(3) | −0.06(1) | 2.8(6) | ⋅⋅⋅ | 51(9) |
| Eighth derivative, f(8)(10−62 s−9) | −0.08(1) | 0.33(2) | 0.10(2) | −9(2) | ⋅⋅⋅ | 210(3) |
| Epoch zero (MJD) | 54936 | 56600 | 57500 | 58500 | 59200 | 59800 |
| Time system | TDB(DE405) | |||||
| Parameters . | . | . | . | . | . | . |
|---|---|---|---|---|---|---|
| Right ascension . | 20:21:29.99 . | |||||
| Declination . | +40:26:45.13 . | |||||
| Valid MJD range | 54710–55850 | 55850–56980 | 56990–58130 | 58140–58900 | 58920–59500 | 59550–60000 |
| Pulse frequency, f(s−1) | 3.769066845(7) | 3.768952744(6) | 3.768891254(7) | 3.768823695(3) | 3.768775022(1) | 3.768734495(7) |
| First derivative,|$\dot{f}(10^{-13} s^{-2})$| | −7.762(1) | −8.206(1) | −7.699(1) | −8.132(1) | −7.822(4) | −8.173(3) |
| Second derivative,|$\ddot{f}(10^{-21} s^{-3})$| | 0.51(3) | 0.56(2) | −0.12(1) | 1.98(3) | 2.19(1) | −13.2(1) |
| Third derivative,|$\dddot{f}(10^{-28} s^{-4})$| | −0.33(4) | 69.3(3) | −0.31(4) | 3.6(1) | 0.4(2) | 169(6) |
| Fourth derivative,f(4)(10−35s−5) | −0.11(1) | −1.14(7) | 0.38(5) | −8.3(3) | −5.6(8) | −94(2) |
| Fifth derivative,f(5)(10−41s−6) | 0.13(3) | −0.22(1) | 0.058(1) | −1.26(9) | 0.3(1)1 | 281(9) |
| Sixth derivative,f(6)(10−48s−7) | −0.26(5) | 0.11(1) | −0.08(1) | 2.9(3) | −1.8(4) | −316(9) |
| Seventh derivative, f(7)(10−55 s−8) | 0.23(3) | 0.51(3) | −0.06(1) | 2.8(6) | ⋅⋅⋅ | 51(9) |
| Eighth derivative, f(8)(10−62 s−9) | −0.08(1) | 0.33(2) | 0.10(2) | −9(2) | ⋅⋅⋅ | 210(3) |
| Epoch zero (MJD) | 54936 | 56600 | 57500 | 58500 | 59200 | 59800 |
| Time system | TDB(DE405) | |||||
Ephemerides of PSR J2021+4026 derived from LAT Data covering MJD 54710–60000.
| Parameters . | . | . | . | . | . | . |
|---|---|---|---|---|---|---|
| Right ascension . | 20:21:29.99 . | |||||
| Declination . | +40:26:45.13 . | |||||
| Valid MJD range | 54710–55850 | 55850–56980 | 56990–58130 | 58140–58900 | 58920–59500 | 59550–60000 |
| Pulse frequency, f(s−1) | 3.769066845(7) | 3.768952744(6) | 3.768891254(7) | 3.768823695(3) | 3.768775022(1) | 3.768734495(7) |
| First derivative,|$\dot{f}(10^{-13} s^{-2})$| | −7.762(1) | −8.206(1) | −7.699(1) | −8.132(1) | −7.822(4) | −8.173(3) |
| Second derivative,|$\ddot{f}(10^{-21} s^{-3})$| | 0.51(3) | 0.56(2) | −0.12(1) | 1.98(3) | 2.19(1) | −13.2(1) |
| Third derivative,|$\dddot{f}(10^{-28} s^{-4})$| | −0.33(4) | 69.3(3) | −0.31(4) | 3.6(1) | 0.4(2) | 169(6) |
| Fourth derivative,f(4)(10−35s−5) | −0.11(1) | −1.14(7) | 0.38(5) | −8.3(3) | −5.6(8) | −94(2) |
| Fifth derivative,f(5)(10−41s−6) | 0.13(3) | −0.22(1) | 0.058(1) | −1.26(9) | 0.3(1)1 | 281(9) |
| Sixth derivative,f(6)(10−48s−7) | −0.26(5) | 0.11(1) | −0.08(1) | 2.9(3) | −1.8(4) | −316(9) |
| Seventh derivative, f(7)(10−55 s−8) | 0.23(3) | 0.51(3) | −0.06(1) | 2.8(6) | ⋅⋅⋅ | 51(9) |
| Eighth derivative, f(8)(10−62 s−9) | −0.08(1) | 0.33(2) | 0.10(2) | −9(2) | ⋅⋅⋅ | 210(3) |
| Epoch zero (MJD) | 54936 | 56600 | 57500 | 58500 | 59200 | 59800 |
| Time system | TDB(DE405) | |||||
| Parameters . | . | . | . | . | . | . |
|---|---|---|---|---|---|---|
| Right ascension . | 20:21:29.99 . | |||||
| Declination . | +40:26:45.13 . | |||||
| Valid MJD range | 54710–55850 | 55850–56980 | 56990–58130 | 58140–58900 | 58920–59500 | 59550–60000 |
| Pulse frequency, f(s−1) | 3.769066845(7) | 3.768952744(6) | 3.768891254(7) | 3.768823695(3) | 3.768775022(1) | 3.768734495(7) |
| First derivative,|$\dot{f}(10^{-13} s^{-2})$| | −7.762(1) | −8.206(1) | −7.699(1) | −8.132(1) | −7.822(4) | −8.173(3) |
| Second derivative,|$\ddot{f}(10^{-21} s^{-3})$| | 0.51(3) | 0.56(2) | −0.12(1) | 1.98(3) | 2.19(1) | −13.2(1) |
| Third derivative,|$\dddot{f}(10^{-28} s^{-4})$| | −0.33(4) | 69.3(3) | −0.31(4) | 3.6(1) | 0.4(2) | 169(6) |
| Fourth derivative,f(4)(10−35s−5) | −0.11(1) | −1.14(7) | 0.38(5) | −8.3(3) | −5.6(8) | −94(2) |
| Fifth derivative,f(5)(10−41s−6) | 0.13(3) | −0.22(1) | 0.058(1) | −1.26(9) | 0.3(1)1 | 281(9) |
| Sixth derivative,f(6)(10−48s−7) | −0.26(5) | 0.11(1) | −0.08(1) | 2.9(3) | −1.8(4) | −316(9) |
| Seventh derivative, f(7)(10−55 s−8) | 0.23(3) | 0.51(3) | −0.06(1) | 2.8(6) | ⋅⋅⋅ | 51(9) |
| Eighth derivative, f(8)(10−62 s−9) | −0.08(1) | 0.33(2) | 0.10(2) | −9(2) | ⋅⋅⋅ | 210(3) |
| Epoch zero (MJD) | 54936 | 56600 | 57500 | 58500 | 59200 | 59800 |
| Time system | TDB(DE405) | |||||
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