Product: BULLETIN B
IERS Bulletin B Number 401 - Version metadata
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Content | IERS Bulletin B provides current information on the Earth's orientation in the IERS Reference System. This includes Universal Time, coordinates of the terrestrial pole, and celestial pole offsets. IERS Bulletin B consists of 5 sections:Section 1: Daily final values at 0:00 UT of x, y, UT1-UTC, dX, dY, and their uncertainties. Time span: one month with final values, one month with preliminary values.Section 2: Daily final values at 0:00 UT of celestial pole offsets dPsi and dEps in the IAU 1980 system and their uncertainties.Section 3: Earth angular velocity (daily estimates of LOD and OMEGA with their uncertainties).Section 4: Information on the time scales and announcement of occurring leap seconds.Section 5: Average formal precision of the individual and combined series contributing or not to the combination and their agreement with the combination. |
Format | ASCII |
Format Description | See contents of the data files or ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf |
Documentation | See contents of the data files and ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf |
Title | IERS Bulletin B Number 401 |
Data | Section 1: Year[yyyy],Month [mm], Day [dd], MJD, x [marcsec], y [marcsec], UT1-UTC [ms], dX [marcsec], dY [marcsec],x err[marcsec], y err[marcsec],UT1 err[marcsec], X err[marcsec], Y err[marcsec],Section 2: Year[yyyy],Month [mm], Day [dd], MJD, dPsi1980[marcsec],dEps1980[marcsec],sig dPsi[marcsec],sig dEps[marcsec]Section 3: Year[yyyy],Month [mm], Day [dd], MJD,LOD[ms],sigma[ms],OMEGA[mas/ms],sigma[mas/ms],Section 4: TAI - UTC [s],Section 5: RMS of x [marcsec], y [mas ], UT1 [ms], LOD[ms], dX [marcsec], dY [marcsec], Number of points |
Data Points | Section 1: 61Section 2: 31Section 3: 31 |
Time Start | Section 1: 2021-05-02Section 2: 2021-05-02Section 3: 2021-05-02 |
Time End | Section 1: 2021-07-01Section 2: 2021-06-01Section 3: 2021-06-01 |
Time Interval | Section 1: 60Section 2: 30Section 3: 30 |
Accuracy | -Section 1: min max avg sigma_X [mas] 0.022 0.026 0.024 sigma_Y [mas] 0.017 0.019 0.018 sigma_UT1-UTC [ms] 0.0103 0.0145 0.0118 sigma_dX [mas] 0.036 0.045 0.040 sigma_dY [mas] 0.024 0.037 0.032Section 2: sigma_dPSI [mas] 0.090 0.113 0.100 sigma_dEPS [mas] 0.024 0.037 0.032Section 3: min max avg sigma_LOD [ms] 0.0064 0.0066 0.0065sigma_OMEGA [mas/ms] 0.00000000111 0.00000000115 0.00000000114 |
Keywords | EOP, monthly, BULLETIN B, Earth orientation parameter, Number 401 |
Frequency | monthly |
Source | http://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.401 |
Created by | IERS Earth Orientation Centre |
Date | 2021-07-02 |
Contact | services.iers@obspm.fr |
Distribution | onLine |
Email Subscription | http://hpiers.obspm.fr/eop-pc/products/bulletins/subscription.html OR http://www.iers.org/subscription.html |
Number | 401 |