ASTROSAT CZTI

Data Quality Report

Orbit 10104

Creation date: 2024-06-27T15:55:04.096488
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/AS1G07_072T01_9000001452_10104cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10104cztM0_level2_quad_clean.evt
Size (bytes)125,971,20035,809,920
Size120.1 MB 34.2 MB
Events in quadrant A864,916242,772
Events in quadrant B919,276247,735
Events in quadrant C819,181241,066
Events in quadrant D1,091,714226,024

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036231
B038261
C035491
D043601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A172640.231750%
B1726100.579374%
C172610.057937%
D1726372.143685%

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 1726 1726 0 0 0.00% 0.00%
B 1726 1726 3 3 0.17% 0.17%
C 1726 1726 0 0 0.00% 0.00%
D 1726 1726 32 32 1.85% 1.85%

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 0 226 2181 41.69 224 219 47.1
A 12 194 1982 37.46 224 219 47.1
A 3 1 931 15.13 224 219 47.1
B 0 246 15989 359.2 221 217 43.9
B 0 214 12237 273.75 221 217 43.9
B 0 219 10871 242.64 221 217 43.9
C 4 175 2811 52.72 208 209 49.4
C 13 61 1559 27.35 208 209 49.4
C 14 67 1454 25.23 208 209 49.4
D 1 52 122056 2265.95 210 204 53.8
D 8 195 86462 1604.05 210 204 53.8
D 7 71 35334 653.27 210 204 53.8

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