ASTROSAT CZTI

Data Quality Report

Orbit 30568

Creation date: 2024-06-27T20:17:05.550850
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_053T23_9000004404_30568cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30568cztM0_level2_quad_clean.evt
Size (bytes)196,637,76034,856,640
Size187.5 MB 33.2 MB
Events in quadrant A1,238,285228,665
Events in quadrant B1,840,043229,388
Events in quadrant C1,423,641215,238
Events in quadrant D1,299,421220,276

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049611
B069151
C057351
D051991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2239411.831175%
B2239803.573024%
C22391456.476105%
D2238311.385165%

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 3329 2240 0 0 0.00% 0.00%
B 3329 2240 0 0 0.00% 0.00%
C 3329 2240 17 17 0.51% 0.76%
D 3328 2239 4 4 0.12% 0.18%

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 8 192 10456 155.79 318 312 65.1
A 13 254 4237 60.28 318 312 65.1
A 3 137 3084 42.57 318 312 65.1
B 6 159 602611 9847.11 313 305 61.2
B 12 111 7319 114.67 313 305 61.2
B 11 111 6713 104.76 313 305 61.2
C 14 238 66979 928.47 302 304 71.8
C 0 10 59965 830.8 302 304 71.8
C 3 233 49540 685.63 302 304 71.8
D 8 195 67950 898.67 312 303 75.3
D 2 250 25444 333.99 312 303 75.3
D 1 52 10223 131.78 312 303 75.3

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