ASTROSAT CZTI

Data Quality Report

Orbit 30067

Creation date: 2024-06-27T20:10:32.985358
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_071T06_9000004324_30067cztM0_level2.evt modeM0/AS1A10_071T06_9000004324_30067cztM0_level2_quad_clean.evt
Size (bytes)259,295,04039,490,560
Size247.3 MB 37.7 MB
Events in quadrant A1,668,037249,341
Events in quadrant B2,602,597247,216
Events in quadrant C1,677,257236,094
Events in quadrant D1,686,415235,641

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068241
B098191
C068191
D069431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31931304.071406%
B31931885.887880%
C31931524.760413%
D3193942.943940%

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 4038 3194 0 0 0.00% 0.00%
B 4038 3194 0 0 0.00% 0.00%
C 4038 3194 0 0 0.00% 0.00%
D 4038 3194 4 4 0.10% 0.13%

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 8 192 9145 98.42 430 421 88.6
A 13 254 5050 52.22 430 421 88.6
A 3 137 4594 47.08 430 421 88.6
B 6 159 914900 10866.31 420 409 84.2
B 0 229 36474 428.54 420 409 84.2
B 12 111 10454 119.36 420 409 84.2
C 14 238 65285 660.14 408 410 98.3
C 3 233 7917 76.39 408 410 98.3
C 2 114 7729 74.48 408 410 98.3
D 8 195 68287 676.62 413 403 100.3
D 13 104 22080 216.06 413 403 100.3
D 2 250 16466 160.1 413 403 100.3

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