ASTROSAT CZTI

Data Quality Report

Orbit 22404

Creation date: 2024-06-27T18:40:32.267386
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/AS1T03_156T01_9000003312_22404cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22404cztM0_level2_quad_clean.evt
Size (bytes)263,318,40045,803,520
Size251.1 MB 43.7 MB
Events in quadrant A1,862,286285,108
Events in quadrant B1,985,087286,558
Events in quadrant C1,896,110276,175
Events in quadrant D1,971,915270,740

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080862
B083851
C081021
D084621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3791441.160644%
B3791701.846479%
C3791661.740965%
D3791491.292535%

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 4966 3791 1 1 0.02% 0.03%
B 4966 3791 21 21 0.42% 0.55%
C 4966 3791 0 0 0.00% 0.00%
D 4966 3791 10 10 0.20% 0.26%

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 4997 46.62 482 472 97.1
A 15 48 4723 43.8 482 472 97.1
A 0 226 4128 37.67 482 472 97.1
B 3 64 95040 1032.89 478 466 91.6
B 12 111 10895 113.9 478 466 91.6
B 11 111 9574 99.47 478 466 91.6
C 14 238 73346 668.42 465 469 109.0
C 10 22 6211 52.66 465 469 109.0
C 13 61 3175 24.82 465 469 109.0
D 7 223 72522 633.0 469 455 113.8
D 1 52 63467 553.47 469 455 113.8
D 12 227 31729 274.7 469 455 113.8

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