ASTROSAT CZTI

Data Quality Report

Orbit 07671

Creation date: 2024-06-27T15:22:31.642104
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/AS1A02_029T01_9000001058_07671cztM0_level2.evt modeM0/AS1A02_029T01_9000001058_07671cztM0_level2_quad_clean.evt
Size (bytes)606,585,600107,199,360
Size578.5 MB 102.2 MB
Events in quadrant A4,265,215671,349
Events in quadrant B4,526,399680,572
Events in quadrant C4,204,755667,045
Events in quadrant D4,796,663635,894

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177123
B0184582
C0177062
D0195472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8520740.868545%
B85201291.514085%
C8520590.692488%
D85201531.795775%

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 11175 8522 0 0 0.00% 0.00%
B 11175 8522 12 12 0.11% 0.14%
C 11175 8522 0 0 0.00% 0.00%
D 11175 8522 78 78 0.70% 0.92%

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 0 226 10766 43.3 1107 1086 223.6
A 12 194 9796 38.96 1107 1086 223.6
A 15 234 4867 16.91 1107 1086 223.6
B 4 239 56955 271.35 1101 1077 205.9
B 10 245 42647 201.87 1101 1077 205.9
B 0 214 41044 194.09 1101 1077 205.9
C 13 61 8232 28.73 1074 1082 248.9
C 9 68 5923 19.45 1074 1082 248.9
C 8 222 5069 16.02 1074 1082 248.9
D 12 0 318456 1210.14 1079 1050 262.3
D 5 233 91105 343.34 1079 1050 262.3
D 2 152 88963 335.18 1079 1050 262.3

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