ASTROSAT CZTI

Data Quality Report

Orbit 31433

Creation date: 2024-06-27T20:28:17.944536
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/AS1A10_094T28_9000004578_31433cztM0_level2.evt modeM0/AS1A10_094T28_9000004578_31433cztM0_level2_quad_clean.evt
Size (bytes)35,818,5609,005,760
Size34.2 MB 8.6 MB
Events in quadrant A204,51459,384
Events in quadrant B366,52358,486
Events in quadrant C222,18956,375
Events in quadrant D255,28156,316

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09620
B014620
C09710
D010240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48000.000000%
B48000.000000%
C48010.208333%
D48000.000000%

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 480 480 0 0 0.00% 0.00%
B 480 480 1 1 0.21% 0.21%
C 480 480 0 0 0.00% 0.00%
D 480 480 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 13 254 1082 80.28 52 51 12.8
A 3 137 546 38.54 52 51 12.8
A 0 226 403 27.41 52 51 12.8
B 6 159 143910 11625.12 52 51 12.4
B 4 80 14208 1144.02 52 51 12.4
B 12 111 1221 94.55 52 51 12.4
C 14 238 8347 581.63 52 52 14.3
C 3 233 7318 509.48 52 52 14.3
C 2 114 1091 72.85 52 52 14.3
D 1 52 28771 1864.27 52 50 15.4
D 8 195 24343 1576.85 52 50 15.4
D 5 233 3194 204.08 52 50 15.4

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