ASTROSAT CZTI

Data Quality Report

Orbit 47475

Creation date: 2024-07-09T09:27:48.385339
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_089T01_9000006330_47475cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47475cztM0_level2_quad_clean.evt
Size (bytes)502,073,280108,714,240
Size478.8 MB 103.7 MB
Events in quadrant A7,298,492705,476
Events in quadrant B3,284,483763,697
Events in quadrant C3,861,180720,275
Events in quadrant D3,653,597663,421

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260012
B0138902
C0157392
D0150642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62894156.598823%
B6289901.431070%
C62891482.353315%
D6289871.383368%

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 7519 6290 169 169 2.25% 2.69%
B 7519 6290 27 27 0.36% 0.43%
C 7519 6290 119 119 1.58% 1.89%
D 7519 6290 35 35 0.47% 0.56%

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 4020633 26637.81 729 715 150.9
A 9 191 432880 2863.72 729 715 150.9
A 14 235 23272 149.47 729 715 150.9
B 5 32 144565 994.4 741 719 144.7
B 7 221 42369 287.92 741 719 144.7
B 0 198 42188 286.67 741 719 144.7
C 0 207 624527 3669.06 726 730 170.0
C 3 233 197541 1157.61 726 730 170.0
C 12 2 103261 603.07 726 730 170.0
D 2 165 331043 1802.36 725 702 183.3
D 14 34 93644 507.1 725 702 183.3
D 2 249 89725 485.72 725 702 183.3

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