ASTROSAT CZTI

Data Quality Report

Orbit 22043

Creation date: 2024-06-27T18:35:45.420801
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/AS1A07_027T02_9000003258_22043cztM0_level2.evt modeM0/AS1A07_027T02_9000003258_22043cztM0_level2_quad_clean.evt
Size (bytes)185,097,60022,567,680
Size176.5 MB 21.5 MB
Events in quadrant A1,285,089132,731
Events in quadrant B1,328,463135,100
Events in quadrant C1,306,541127,152
Events in quadrant D1,529,943124,510

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053921
B054891
C054741
D061211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2258552.435784%
B2258683.011515%
C2258974.295837%
D22581094.827281%

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 3498 2258 0 0 0.00% 0.00%
B 3498 2258 2 2 0.06% 0.09%
C 3498 2258 0 0 0.00% 0.00%
D 3498 2258 58 58 1.66% 2.57%

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 13 254 3472 46.52 333 327 67.6
A 0 226 2848 37.29 333 327 67.6
A 3 137 2612 33.8 333 327 67.6
B 3 64 15534 241.38 331 324 63.0
B 0 230 8216 125.24 331 324 63.0
B 12 111 7376 111.91 331 324 63.0
C 14 238 50566 676.1 319 321 74.3
C 10 22 6525 83.48 319 321 74.3
C 13 61 2293 26.54 319 321 74.3
D 11 176 291900 3754.48 323 313 77.7
D 2 136 10918 136.55 323 313 77.7
D 2 234 7942 98.23 323 313 77.7

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