ASTROSAT CZTI

Data Quality Report

Orbit 40516

Creation date: 2024-06-27T22:17:03.027970
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/AS1T05_070T01_9000005544_40516cztM0_level2.fits modeM0/AS1T05_070T01_9000005544_40516cztM0_level2_quad_clean.evt
Size (bytes)230,852,16057,683,520
Size220.2 MB 55.0 MB
Events in quadrant A1,903,201404,246
Events in quadrant B1,843,670415,024
Events in quadrant C1,816,505386,835
Events in quadrant D2,712,336297,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076162
B076981
C074861
D0104501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A343980.232626%
B3439130.378017%
C3439431.250363%
D343970520.500145%

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 5262 3440 3 3 0.06% 0.09%
B 5262 3440 4 4 0.08% 0.12%
C 5262 3440 33 33 0.63% 0.96%
D 5262 3440 303 303 5.76% 8.81%

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 10 83 321962 3925.93 391 384 81.9
A 12 189 45362 549.11 391 384 81.9
A 2 79 11797 139.33 391 384 81.9
B 0 183 117196 1536.45 389 378 76.0
B 3 112 90198 1181.36 389 378 76.0
B 0 230 41090 535.46 389 378 76.0
C 15 214 151192 1706.73 377 379 88.4
C 14 254 148858 1680.32 377 379 88.4
C 10 20 31244 349.3 377 379 88.4
D 12 227 947059 10932.39 343 333 86.6
D 2 250 177553 2046.46 343 333 86.6
D 12 191 97946 1127.19 343 333 86.6

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