ASTROSAT CZTI

Data Quality Report

Orbit 20231020_C07_001T10_9000005890_level2

Creation date: 2023-10-23T12:06:56.726819
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/AS1C07_001T10_9000005890cztM0_level2.fits modeM0/AS1C07_001T10_9000005890cztM0_level2_quad_clean.evt
Size (bytes)529,237,440670,996,800
Size504.7 MB 639.9 MB
Events in quadrant A4,432,7567,427,008
Events in quadrant B4,030,0166,587,100
Events in quadrant C750,06874,728
Events in quadrant D732,226239,965

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017700
B017700
C017700
D017700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02672920
B03465270
C07269240
D06636200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8735550445.774140%
B873571530217.516627%
C873468637998.892909%
D873518478197.057847%

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 97258 87352 0 0 0.00% 0.00%
B 97258 87306 0 0 0.00% 0.00%
C 97255 71109 0 0 0.00% 0.00%
D 97258 68269 0 0 0.00% 0.00%

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 0 29 3761 9.31 1163 1095 286.2
A 7 110 3715 9.15 1163 1095 286.2
A 0 30 3568 8.64 1163 1095 286.2
B 2 9 3663 12.67 1071 1024 208.3
B 3 17 2895 8.98 1071 1024 208.3
B 2 8 2839 8.71 1071 1024 208.3
C 1 81 661 9.27 199 186 51.3
C 1 80 636 8.78 199 186 51.3
C 3 202 581 7.71 199 186 51.3
D 6 38 565 6.03 214 191 62.1
D 10 189 561 5.96 214 191 62.1
D 15 46 554 5.85 214 191 62.1

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