ASTROSAT CZTI

Data Quality Report

Orbit 10210

Creation date: 2024-06-27T15:56:47.305610
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/AS1G07_027T01_9000001470_10210cztM0_level2.evt modeM0/AS1G07_027T01_9000001470_10210cztM0_level2_quad_clean.evt
Size (bytes)183,179,52047,039,040
Size174.7 MB 44.9 MB
Events in quadrant A1,183,769314,669
Events in quadrant B1,381,415315,998
Events in quadrant C1,185,812315,516
Events in quadrant D1,623,785297,729

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053941
B058441
C053671
D065371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2512501.990446%
B2512763.025478%
C2512331.313694%
D2512552.189490%

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 2727 2513 0 0 0.00% 0.00%
B 2727 2513 7 7 0.26% 0.28%
C 2727 2513 1 1 0.04% 0.04%
D 2727 2513 11 11 0.40% 0.44%

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 15 223 7343 110.5 303 296 63.8
A 15 239 5402 80.06 303 296 63.8
A 8 15 4113 59.85 303 296 63.8
B 11 51 77160 1257.4 305 297 61.1
B 4 239 74120 1207.67 305 297 61.1
B 0 214 32090 520.1 305 297 61.1
C 14 67 3039 37.88 302 303 72.2
C 12 4 2550 31.11 302 303 72.2
C 13 61 2230 26.68 302 303 72.2
D 1 52 277083 3773.27 297 289 73.4
D 8 195 122452 1665.33 297 289 73.4
D 2 16 37492 507.15 297 289 73.4

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