ASTROSAT CZTI

Data Quality Report

Orbit 29077

Creation date: 2024-06-27T20:00:02.091907
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/AS1A10_094T18_9000004174_29077cztM0_level2.evt modeM0/AS1A10_094T18_9000004174_29077cztM0_level2_quad_clean.evt
Size (bytes)198,192,96048,274,560
Size189.0 MB 46.0 MB
Events in quadrant A1,205,541340,967
Events in quadrant B1,233,922344,721
Events in quadrant C1,177,860319,994
Events in quadrant D2,235,133298,502

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050031
B050521
C048371
D081271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2175472.160920%
B2175542.482759%
C2175582.666667%
D217525511.724138%

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 3296 2175 0 0 0.00% 0.00%
B 3295 2174 1 1 0.03% 0.05%
C 3296 2175 0 0 0.00% 0.00%
D 3296 2175 182 182 5.52% 8.37%

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 15 174 6333 95.17 310 304 63.4
A 13 254 4078 59.57 310 304 63.4
A 3 137 2923 41.34 310 304 63.4
B 5 255 15318 257.76 303 296 58.3
B 0 190 14426 242.45 303 296 58.3
B 12 111 6630 108.68 303 296 58.3
C 14 238 47023 687.58 288 289 68.0
C 2 114 5382 74.93 288 289 68.0
C 13 61 1941 24.31 288 289 68.0
D 1 52 444140 6370.57 288 279 69.7
D 8 195 265914 3812.55 288 279 69.7
D 12 233 145445 2083.51 288 279 69.7

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