ASTROSAT CZTI

Data Quality Report

Orbit 09852

Creation date: 2024-06-27T15:51:28.015352
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/AS1A03_134T01_9000001400_09852cztM0_level2.evt modeM0/AS1A03_134T01_9000001400_09852cztM0_level2_quad_clean.evt
Size (bytes)172,759,68049,334,400
Size164.8 MB 47.0 MB
Events in quadrant A1,140,111333,416
Events in quadrant B1,261,155338,139
Events in quadrant C1,162,540329,013
Events in quadrant D1,496,660314,278

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0517720
B0549815
C0515017
D0615430

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A249080.321285%
B2493240.962696%
C249120.080289%
D2487381.527945%

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 2499 2499 0 0 0.00% 0.00%
B 2499 2499 3 3 0.12% 0.12%
C 2499 2498 1 1 0.04% 0.04%
D 2499 2499 30 30 1.20% 1.20%

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 13 248 2918 42.66 294 289 61.6
A 0 226 2601 37.52 294 289 61.6
A 12 194 2374 33.83 294 289 61.6
B 4 81 53698 930.01 297 290 57.4
B 0 214 33346 575.62 297 290 57.4
B 0 230 11442 194.19 297 290 57.4
C 0 207 11613 163.85 293 296 69.1
C 4 254 6027 82.98 293 296 69.1
C 13 61 2149 26.83 293 296 69.1
D 1 52 259450 3598.57 287 280 72.0
D 12 233 80449 1113.15 287 280 72.0
D 8 195 27571 378.94 287 280 72.0

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