ASTROSAT CZTI

Data Quality Report

Orbit 30792

Creation date: 2024-06-27T20:19:41.065735
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_071T18_9000004448_30792cztM0_level2.evt modeM0/AS1A10_071T18_9000004448_30792cztM0_level2_quad_clean.evt
Size (bytes)443,540,16065,105,280
Size423.0 MB 62.1 MB
Events in quadrant A2,004,822441,207
Events in quadrant B3,244,252436,146
Events in quadrant C3,145,628407,344
Events in quadrant D4,750,212387,414

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086160
B0127890
C0121890
D0170890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A425070.164706%
B4250340.800000%
C42513167.433545%
D42514189.832980%

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 4250 4250 0 0 0.00% 0.00%
B 4250 4250 0 0 0.00% 0.00%
C 4251 4251 52 52 1.22% 1.22%
D 4251 4251 494 494 11.62% 11.62%

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 13 254 7790 69.7 519 510 104.5
A 3 137 5075 43.7 519 510 104.5
A 0 226 4376 37.01 519 510 104.5
B 6 159 1184122 11920.46 509 496 99.3
B 0 190 34307 340.52 509 496 99.3
B 12 111 11697 112.81 509 496 99.3
C 3 233 1121048 9706.8 486 490 115.4
C 14 238 77689 668.73 486 490 115.4
C 14 128 16762 140.96 486 490 115.4
D 8 195 2290172 17919.57 483 474 127.8
D 13 249 392380 3067.12 483 474 127.8
D 12 227 175376 1368.81 483 474 127.8

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