ASTROSAT CZTI

Data Quality Report

Orbit 23603

Creation date: 2024-06-27T18:56:40.964481
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/AS1A07_054T01_9000003486_23603cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23603cztM0_level2_quad_clean.evt
Size (bytes)771,312,960195,171,840
Size735.6 MB 186.1 MB
Events in quadrant A4,778,4431,330,799
Events in quadrant B5,862,8071,321,720
Events in quadrant C5,511,8961,273,729
Events in quadrant D6,488,3781,251,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02180
B02180
C02180
D02180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215202
B0245552
C0236612
D0264312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10594460.434208%
B105952542.397357%
C105951721.623407%
D105951881.774422%

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 12044 10596 0 0 0.00% 0.00%
B 12045 10595 152 152 1.26% 1.43%
C 12045 10595 7 7 0.06% 0.07%
D 12045 10595 113 113 0.94% 1.07%

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 13 254 18904 71.11 1238 1213 248.8
A 3 137 10968 39.21 1238 1213 248.8
A 0 226 10785 38.48 1238 1213 248.8
B 3 64 867002 3728.38 1224 1190 232.2
B 0 189 70530 298.59 1224 1190 232.2
B 0 230 70356 297.84 1224 1190 232.2
C 10 9 626889 2236.79 1191 1194 279.7
C 14 238 188442 669.39 1191 1194 279.7
C 7 247 24105 81.9 1191 1194 279.7
D 9 85 1041272 3562.5 1201 1165 292.0
D 1 52 516731 1765.88 1201 1165 292.0
D 12 233 204440 696.24 1201 1165 292.0

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