ASTROSAT CZTI

Data Quality Report

Orbit 44384

Creation date: 2024-06-27T23:02:55.125193
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/AS1A13_008T05_9000005996_44384cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44384cztM0_level2_quad_clean.evt
Size (bytes)339,955,20075,602,880
Size324.2 MB 72.1 MB
Events in quadrant A3,463,531495,042
Events in quadrant B2,313,641536,880
Events in quadrant C2,328,418508,841
Events in quadrant D4,121,088425,288

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012123
B011820
C012430
D012026

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182033978
B0126312699
C0126952614
D0205895133

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171
B0170
C0181
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45321332.934687%
B4663621.329616%
C4667561.199914%
D44673537.902395%

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 7717 4813 11 11 0.14% 0.23%
B 7717 4916 2 2 0.03% 0.04%
C 7717 4919 32 32 0.41% 0.65%
D 7716 4729 228 228 2.95% 4.82%

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 1289527 11482.71 534 522 112.3
A 13 248 70003 618.95 534 522 112.3
A 15 223 25158 219.46 534 522 112.3
B 0 190 67789 620.34 551 534 108.4
B 5 255 23834 214.91 551 534 108.4
B 0 219 16748 149.55 551 534 108.4
C 14 254 129682 1009.88 539 543 127.9
C 0 207 50196 388.29 539 543 127.9
C 15 208 28937 222.04 539 543 127.9
D 1 52 876218 6862.85 503 486 127.6
D 5 222 329296 2576.79 503 486 127.6
D 8 192 177884 1390.22 503 486 127.6

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