ASTROSAT CZTI

Data Quality Report

Orbit 17168

Creation date: 2024-06-27T17:33:06.782595
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/AS1A05_185T04_9000002548_17168cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17168cztM0_level2_quad_clean.evt
Size (bytes)165,211,20040,694,400
Size157.6 MB 38.8 MB
Events in quadrant A1,108,062273,783
Events in quadrant B1,156,021279,600
Events in quadrant C1,224,839264,362
Events in quadrant D1,364,623257,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046611
B047911
C050131
D054952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2176100.459559%
B2176170.781250%
C2176371.700368%
D2175492.252874%

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 3431 2178 0 0 0.00% 0.00%
B 3431 2178 0 0 0.00% 0.00%
C 3431 2178 0 0 0.00% 0.00%
D 3430 2177 25 25 0.73% 1.15%

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 12 189 14083 233.83 283 276 59.0
A 12 96 4944 79.06 283 276 59.0
A 0 226 2395 35.89 283 276 59.0
B 0 229 12351 212.49 285 277 56.8
B 0 197 7464 126.48 285 277 56.8
B 12 111 6370 107.23 285 277 56.8
C 3 233 107386 1629.89 274 275 65.7
C 14 238 41387 625.59 274 275 65.7
C 4 254 3271 45.59 274 275 65.7
D 5 222 280607 4149.75 275 267 67.6
D 10 70 16792 244.61 275 267 67.6
D 2 152 9244 132.88 275 267 67.6

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