ASTROSAT CZTI

Data Quality Report

Orbit 44327

Creation date: 2024-06-27T23:02:13.325509
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/AS1A13_004T09_9000005992_44327cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44327cztM0_level2_quad_clean.evt
Size (bytes)163,555,20038,882,880
Size156.0 MB 37.1 MB
Events in quadrant A1,713,894261,099
Events in quadrant B1,366,518268,424
Events in quadrant C1,134,946260,740
Events in quadrant D1,665,415228,278

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069401
B054651
C047531
D063371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22021366.176203%
B22021516.857402%
C2202632.861035%
D22022169.809264%

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 3292 2202 4 4 0.12% 0.18%
B 3292 2202 25 25 0.76% 1.14%
C 3292 2202 3 3 0.09% 0.14%
D 3292 2202 128 128 3.89% 5.81%

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 10 83 572540 9520.62 283 277 60.1
A 7 3 37202 614.31 283 277 60.1
A 15 223 5143 80.95 283 277 60.1
B 0 219 135326 2382.55 278 270 56.7
B 7 221 83770 1473.04 278 270 56.7
B 4 158 16875 292.93 278 270 56.7
C 14 254 34051 507.74 277 279 66.5
C 1 3 14118 208.06 277 279 66.5
C 3 233 5263 74.93 277 279 66.5
D 13 249 397016 5820.52 268 259 68.2
D 2 153 123408 1806.63 268 259 68.2
D 4 234 44162 644.07 268 259 68.2

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