ASTROSAT CZTI

Data Quality Report

Orbit 30058

Creation date: 2024-06-27T20:10:25.953106
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_071T07_9000004322_30058cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30058cztM0_level2_quad_clean.evt
Size (bytes)1,009,252,800167,863,680
Size962.5 MB 160.1 MB
Events in quadrant A6,071,4671,079,175
Events in quadrant B9,636,2071,066,495
Events in quadrant C7,015,4281,027,435
Events in quadrant D6,972,5941,021,009

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266563
B0388413
C0291393
D0292863

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128721240.963331%
B128722391.856743%
C128724153.224052%
D128722301.786824%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 14157 12874 1 1 0.01% 0.01%
B 14157 12874 7 7 0.05% 0.05%
C 14157 12874 20 20 0.14% 0.16%
D 14157 12874 103 103 0.73% 0.80%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 192 37683 115.38 1564 1531 313.3
A 13 254 22600 67.24 1564 1531 313.3
A 3 137 16568 47.99 1564 1531 313.3
B 6 159 3552839 11972.34 1535 1498 296.6
B 12 111 38041 123.19 1535 1498 296.6
B 11 111 35435 114.41 1535 1498 296.6
C 3 233 485537 1378.35 1491 1502 351.2
C 14 238 296668 840.52 1491 1502 351.2
C 2 16 265833 752.72 1491 1502 351.2
D 13 104 482432 1353.88 1504 1471 355.2
D 8 195 428196 1201.21 1504 1471 355.2
D 7 223 190021 530.76 1504 1471 355.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter