ASTROSAT CZTI

Data Quality Report

Orbit 11728

Creation date: 2024-06-27T16:17:29.692525
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/AS1G08_006T01_9000001728_11728cztM0_level2.evt modeM0/AS1G08_006T01_9000001728_11728cztM0_level2_quad_clean.evt
Size (bytes)331,024,32043,951,680
Size315.7 MB 41.9 MB
Events in quadrant A3,190,546279,681
Events in quadrant B2,051,936292,516
Events in quadrant C1,026,706302,445
Events in quadrant D3,578,855269,362

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113180
B078500
C052000
D0124420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A259655321.302003%
B25961254.815100%
C259610.038521%
D259652020.030817%

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 2597 2597 391 391 15.06% 15.06%
B 2597 2597 89 89 3.43% 3.43%
C 2597 2597 1 1 0.04% 0.04%
D 2597 2597 714 714 27.49% 27.49%

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 15 1849654 32807.95 264 258 56.4
A 1 162 96189 1701.8 264 258 56.4
A 9 143 56788 1002.83 264 258 56.4
B 3 64 363168 6899.99 271 266 52.6
B 4 239 296653 5635.32 271 266 52.6
B 15 204 170864 3243.64 271 266 52.6
C 0 207 5033 77.25 261 262 61.8
C 8 222 2437 35.22 261 262 61.8
C 13 61 2073 29.32 261 262 61.8
D 1 52 2067285 33033.53 252 245 62.6
D 8 195 235055 3752.52 252 245 62.6
D 4 95 123049 1962.54 252 245 62.6

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