ASTROSAT CZTI

Data Quality Report

Orbit 33683

Creation date: 2024-06-27T20:51:29.244170
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/AS1T04_090T01_9000004812_33683cztM0_level2.evt modeM0/AS1T04_090T01_9000004812_33683cztM0_level2_quad_clean.evt
Size (bytes)520,269,12054,766,080
Size496.2 MB 52.2 MB
Events in quadrant A3,618,925316,436
Events in quadrant B3,430,521325,115
Events in quadrant C3,580,316333,912
Events in quadrant D4,772,523316,036

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141293
B0135292
C0147022
D0178472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52262625.013395%
B52261813.463452%
C5226981.875239%
D52263767.194795%

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 7259 5227 216 216 2.98% 4.13%
B 7259 5227 131 131 1.80% 2.51%
C 7259 5227 78 78 1.07% 1.49%
D 7259 5227 384 384 5.29% 7.35%

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 15 237 582574 4365.52 684 673 133.3
A 15 169 369403 2766.27 684 673 133.3
A 13 6 18824 136.17 684 673 133.3
B 5 172 585994 4648.48 690 675 125.9
B 15 85 60436 474.61 690 675 125.9
B 0 219 22615 174.24 690 675 125.9
C 3 233 404106 2599.18 685 693 155.2
C 0 10 238664 1533.24 685 693 155.2
C 15 214 226355 1453.93 685 693 155.2
D 2 250 1000415 6095.59 673 654 164.0
D 8 195 665788 4055.36 673 654 164.0
D 13 249 200957 1221.26 673 654 164.0

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