ASTROSAT CZTI

Data Quality Report

Orbit 22045

Creation date: 2024-06-27T18:35:51.042824
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_047T09_9000003260_22045cztM0_level2.evt modeM0/AS1A07_047T09_9000003260_22045cztM0_level2_quad_clean.evt
Size (bytes)146,928,96040,685,760
Size140.1 MB 38.8 MB
Events in quadrant A968,610283,390
Events in quadrant B994,652289,168
Events in quadrant C959,012273,072
Events in quadrant D1,411,382263,268

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039771
B040541
C039231
D054021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1678523.098927%
B1678653.873659%
C1678794.707986%
D16781257.449344%

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 3023 1678 0 0 0.00% 0.00%
B 3023 1678 0 0 0.00% 0.00%
C 3023 1678 0 0 0.00% 0.00%
D 3023 1678 63 63 2.08% 3.75%

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 2717 48.9 251 246 50.5
A 0 226 2122 37.12 251 246 50.5
A 3 137 1961 33.94 251 246 50.5
B 0 190 17805 369.83 245 239 47.5
B 3 64 5968 120.62 245 239 47.5
B 0 197 5226 104.99 245 239 47.5
C 14 238 37724 686.86 235 236 54.6
C 9 54 1682 26.49 235 236 54.6
C 13 61 1670 26.27 235 236 54.6
D 12 233 415662 7070.65 240 232 58.8
D 13 172 34692 586.51 240 232 58.8
D 1 52 23311 392.81 240 232 58.8

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