ASTROSAT CZTI

Data Quality Report

Orbit 52607

Creation date: 2025-06-20T09:18:19.140329
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/AS1C09_011T06_9000006478_52607cztM0_level2.fits modeM0/AS1C09_011T06_9000006478_52607cztM0_level2_quad_clean.evt
Size (bytes)1,131,724,800145,097,280
Size1.1 GB 138.4 MB
Events in quadrant A7,153,8781,012,779
Events in quadrant B8,513,8291,051,575
Events in quadrant C8,569,511930,971
Events in quadrant D16,776,772610,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290970
B0332340
C0335810
D0578440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02280
B02280
C02280
D02280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113644784.206265%
B113648007.039775%
C113658597.558293%
D11365427637.624285%

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 11364 11364 328 328 2.89% 2.89%
B 11364 11364 289 289 2.54% 2.54%
C 11365 11365 694 694 6.11% 6.11%
D 11365 11364 3511 3511 30.89% 30.90%

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 4 249 1017912 3454.63 1172 1143 294.3
A 12 80 452036 1531.98 1172 1143 294.3
A 3 14 201497 680.73 1172 1143 294.3
B 10 254 1722131 7101.91 1147 1109 242.3
B 4 81 650410 2679.38 1147 1109 242.3
B 7 0 641188 2641.33 1147 1109 242.3
C 15 248 1697224 5532.12 1113 1098 306.6
C 2 12 537736 1750.31 1113 1098 306.6
C 12 252 459921 1496.51 1113 1098 306.6
D 4 186 4163789 16164.47 901 861 257.5
D 2 62 3680108 14286.35 901 861 257.5
D 8 176 2176782 8449.0 901 861 257.5

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