ASTROSAT CZTI

Data Quality Report

Orbit 32070

Creation date: 2024-06-27T20:36:07.079095
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/AS1A10_109T01_9000004682_32070cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32070cztM0_level2_quad_clean.evt
Size (bytes)1,165,665,600194,829,120
Size1.1 GB 185.8 MB
Events in quadrant A6,369,2171,312,567
Events in quadrant B10,577,0321,281,703
Events in quadrant C7,467,3971,219,019
Events in quadrant D10,011,2251,187,800

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271673
B0407733
C0304203
D0384913

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130171391.067834%
B130173822.934624%
C130178716.691250%
D130176965.346854%

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 14217 13017 0 0 0.00% 0.00%
B 14217 13017 88 88 0.62% 0.68%
C 14217 13017 49 49 0.34% 0.38%
D 14217 13018 410 410 2.88% 3.15%

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 6 27700 79.08 1643 1614 329.9
A 13 254 25749 73.16 1643 1614 329.9
A 3 137 16362 44.71 1643 1614 329.9
B 6 159 3533477 11352.9 1612 1572 311.1
B 10 245 316854 1013.44 1612 1572 311.1
B 5 172 237226 757.48 1612 1572 311.1
C 3 233 526530 1455.56 1532 1549 360.7
C 14 238 387870 1071.12 1532 1549 360.7
C 0 10 218477 601.45 1532 1549 360.7
D 8 195 2673582 7143.24 1569 1532 374.1
D 12 227 834466 2226.7 1569 1532 374.1
D 12 218 336227 894.75 1569 1532 374.1

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