ASTROSAT CZTI

Data Quality Report

Orbit 15484

Creation date: 2024-06-27T17:09:21.790435
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/AS1G08_043T01_9000002288_15484cztM0_level2.evt modeM0/AS1G08_043T01_9000002288_15484cztM0_level2_quad_clean.evt
Size (bytes)254,007,36051,707,520
Size242.2 MB 49.3 MB
Events in quadrant A1,721,066333,873
Events in quadrant B1,809,183336,378
Events in quadrant C1,784,221328,187
Events in quadrant D2,140,467320,903

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073272
B075231
C075591
D085861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3472531.526498%
B3472541.555300%
C3472772.217742%
D3472952.736175%

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 4568 3473 1 1 0.02% 0.03%
B 4568 3473 0 0 0.00% 0.00%
C 4568 3473 0 0 0.00% 0.00%
D 4568 3473 49 49 1.07% 1.41%

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 9 143 13681 145.19 443 432 91.3
A 0 226 4071 39.88 443 432 91.3
A 13 248 3389 32.41 443 432 91.3
B 4 216 17271 200.13 441 431 84.1
B 0 189 16109 186.32 441 431 84.1
B 0 228 11306 129.24 441 431 84.1
C 14 238 65423 652.3 424 426 99.6
C 3 233 45730 454.66 424 426 99.6
C 9 54 18059 176.96 424 426 99.6
D 1 52 237688 2259.35 429 416 105.0
D 7 38 195172 1854.5 429 416 105.0
D 5 222 26181 245.34 429 416 105.0

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