ASTROSAT CZTI

Data Quality Report

Orbit 12070

Creation date: 2024-06-27T16:22:07.703130
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/AS1C03_015T01_9000001788_12070cztM0_level2.evt modeM0/AS1C03_015T01_9000001788_12070cztM0_level2_quad_clean.evt
Size (bytes)239,218,56068,572,800
Size228.1 MB 65.4 MB
Events in quadrant A1,738,326466,191
Events in quadrant B1,983,571466,820
Events in quadrant C1,596,774468,497
Events in quadrant D1,705,455446,283

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073082
B079821
C068061
D072921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3228932.881041%
B32281735.359356%
C3228521.610905%
D3228672.075589%

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 4489 3229 3 3 0.07% 0.09%
B 4489 3229 52 52 1.16% 1.61%
C 4489 3229 0 0 0.00% 0.00%
D 4489 3229 6 6 0.13% 0.19%

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 13 251 45336 530.34 414 406 84.7
A 1 162 31641 368.69 414 406 84.7
A 14 63 20238 234.09 414 406 84.7
B 4 239 248942 3200.32 410 399 77.7
B 15 204 72261 925.32 410 399 77.7
B 11 51 20127 254.02 410 399 77.7
C 0 207 8180 82.88 407 409 93.8
C 13 61 3009 27.73 407 409 93.8
C 14 234 1511 11.75 407 409 93.8
D 1 52 104257 1101.56 402 391 94.3
D 13 249 24707 257.88 402 391 94.3
D 7 71 18478 191.82 402 391 94.3

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