ASTROSAT CZTI

Data Quality Report

Orbit 09852

Creation date: 2024-06-27T15:51:56.478436
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/AS1G07_031T01_9000001402_09852cztM0_level2.evt modeM0/AS1G07_031T01_9000001402_09852cztM0_level2_quad_clean.evt
Size (bytes)213,462,72037,992,960
Size203.6 MB 36.2 MB
Events in quadrant A1,485,514233,328
Events in quadrant B1,566,840240,026
Events in quadrant C1,519,256234,841
Events in quadrant D1,685,274226,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062992
B065411
C063803
D069001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3024150.496032%
B3024300.992063%
C3023130.430036%
D3024220.727513%

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 4109 3025 0 0 0.00% 0.00%
B 4109 3025 1 1 0.02% 0.03%
C 4109 3025 5 5 0.12% 0.17%
D 4109 3025 8 8 0.19% 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 13 251 7416 88.85 382 374 79.3
A 0 226 3552 40.1 382 374 79.3
A 12 194 3194 35.58 382 374 79.3
B 4 81 24947 330.21 383 375 74.4
B 0 214 18747 246.89 383 375 74.4
B 4 239 16238 213.18 383 375 74.4
C 4 254 59302 664.99 372 376 88.6
C 0 207 3817 38.83 372 376 88.6
C 13 61 2833 27.73 372 376 88.6
D 1 52 161522 1706.76 369 358 94.4
D 8 195 57903 609.41 369 358 94.4
D 2 14 21085 219.5 369 358 94.4

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