ASTROSAT CZTI

Data Quality Report

Orbit 04623

Creation date: 2024-06-27T14:44:42.184033
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/AS1G05_154T01_9000000576_04623cztM0_level2.evt modeM0/AS1G05_154T01_9000000576_04623cztM0_level2_quad_clean.evt
Size (bytes)423,915,84059,546,880
Size404.3 MB 56.8 MB
Events in quadrant A2,438,549363,412
Events in quadrant B2,491,586365,845
Events in quadrant C2,376,820364,552
Events in quadrant D5,158,296325,065

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01107815
B01107712
C01104912
D01919056

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A548020.036496%
B548260.109449%
C548260.109449%
D548067912.390511%

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 5481 5481 0 0 0.00% 0.00%
B 5482 5482 1 1 0.02% 0.02%
C 5482 5482 1 1 0.02% 0.02%
D 5480 5479 626 626 11.42% 11.43%

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 8 15 41054 316.91 615 602 127.6
A 15 174 8322 60.48 615 602 127.6
A 13 251 7840 56.7 615 602 127.6
B 15 54 22585 181.48 624 609 121.1
B 10 16 14813 117.3 624 609 121.1
B 15 204 12736 100.14 624 609 121.1
C 0 239 21196 146.91 599 603 140.2
C 14 48 12972 88.24 599 603 140.2
C 13 61 5028 31.57 599 603 140.2
D 8 112 1685509 12237.9 561 543 137.7
D 13 235 851573 6181.03 561 543 137.7
D 2 234 287782 2086.22 561 543 137.7

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