ASTROSAT CZTI

Data Quality Report

Orbit 41329

Creation date: 2024-06-27T22:27:39.617407
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/AS1A12_037T01_9000005652_41329cztM0_level2.fits modeM0/AS1A12_037T01_9000005652_41329cztM0_level2_quad_clean.evt
Size (bytes)340,387,20086,230,080
Size324.6 MB 82.2 MB
Events in quadrant A2,801,636594,085
Events in quadrant B2,537,185615,268
Events in quadrant C3,204,336540,548
Events in quadrant D3,666,907510,361

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112293
B0107072
C0123522
D0143042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5006100.199760%
B5006190.379545%
C50062845.673192%
D50062154.294846%

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 8983 5008 7 7 0.08% 0.14%
B 8983 5008 14 14 0.16% 0.28%
C 8983 5008 280 280 3.12% 5.59%
D 8983 5008 212 212 2.36% 4.23%

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 493248 4125.17 581 571 119.4
A 2 79 54544 451.91 581 571 119.4
A 3 137 6496 49.61 581 571 119.4
B 5 255 140115 1252.26 578 563 111.4
B 0 190 94835 845.94 578 563 111.4
B 0 229 15614 135.06 578 563 111.4
C 0 10 890575 7008.0 540 543 127.0
C 15 214 207059 1626.08 540 543 127.0
C 13 61 3669 24.61 540 543 127.0
D 2 120 511772 3732.77 551 536 137.0
D 1 52 487022 3552.06 551 536 137.0
D 13 249 273937 1996.23 551 536 137.0

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