ASTROSAT CZTI

Data Quality Report

Orbit 07809

Creation date: 2024-06-27T15:24:17.253637
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/AS1G06_032T01_9000001074_07809cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07809cztM0_level2_quad_clean.evt
Size (bytes)642,093,120146,010,240
Size612.3 MB 139.2 MB
Events in quadrant A4,499,802942,461
Events in quadrant B4,918,491965,665
Events in quadrant C4,486,601928,294
Events in quadrant D4,859,243889,692

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204603
B0212602
C0204932
D0218212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10044770.766627%
B100441141.135006%
C10044420.418160%
D100441281.274393%

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 11004 10044 0 0 0.00% 0.00%
B 11004 10044 12 12 0.11% 0.12%
C 11004 10045 0 0 0.00% 0.00%
D 11004 10044 61 61 0.55% 0.61%

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 3 1 15941 62.54 1160 1132 236.8
A 13 14 14250 55.4 1160 1132 236.8
A 0 226 11034 41.82 1160 1132 236.8
B 11 51 106327 470.02 1175 1148 223.8
B 4 239 64374 282.54 1175 1148 223.8
B 0 219 59079 258.88 1175 1148 223.8
C 1 16 24827 90.39 1134 1139 262.1
C 8 128 10955 37.46 1134 1139 262.1
C 14 234 9423 31.61 1134 1139 262.1
D 2 152 219525 791.3 1126 1088 276.0
D 12 233 158694 570.94 1126 1088 276.0
D 13 104 85977 307.52 1126 1088 276.0

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