ASTROSAT CZTI

Data Quality Report

Orbit 34219

Creation date: 2022-01-26T04:59:42.479742
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/AS1T04_086T01_9000004884_34219cztM0_level2.evt modeM0/AS1T04_086T01_9000004884_34219cztM0_level2_quad_clean.evt
Size (bytes)580,152,96052,937,280
Size553.3 MB 50.5 MB
Events in quadrant A2,528,794318,342
Events in quadrant B5,509,125313,139
Events in quadrant C4,015,366309,610
Events in quadrant D5,167,439298,755

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106083
B0199392
C0153092
D0191042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A517750.096581%
B517760711.724937%
C51772855.505119%
D51773767.262894%

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 7270 5178 0 0 0.00% 0.00%
B 7270 5178 406 406 5.58% 7.84%
C 7270 5178 263 263 3.62% 5.08%
D 7270 5178 358 358 4.92% 6.91%

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 22845 174.27 641 630 127.5
A 13 6 19003 144.13 641 630 127.5
A 9 143 11213 83.02 641 630 127.5
B 5 31 1392427 11707.22 629 614 118.9
B 5 172 692096 5816.39 629 614 118.9
B 5 15 544786 4577.3 629 614 118.9
C 14 254 414776 2891.06 628 637 143.2
C 9 187 396293 2762.04 628 637 143.2
C 0 207 274179 1909.57 628 637 143.2
D 10 118 917098 6128.71 613 597 149.5
D 8 195 716817 4789.42 613 597 149.5
D 2 120 554544 3704.29 613 597 149.5

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