ASTROSAT CZTI

Data Quality Report

Orbit 52133

Creation date: 2025-05-18T21:10:52.124665
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/AS1C09_011T07_9000006470_52133cztM0_level2.fits modeM0/AS1C09_011T07_9000006470_52133cztM0_level2_quad_clean.evt
Size (bytes)846,616,32070,329,600
Size807.4 MB 67.1 MB
Events in quadrant A3,977,952577,976
Events in quadrant B4,183,972613,038
Events in quadrant C7,763,933443,291
Events in quadrant D14,944,42471,869

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158721
B0166751
C0272921
D0485441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60532924.824054%
B60543255.368352%
C6054157626.032375%
D6054537588.784275%

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 7233 6054 195 195 2.70% 3.22%
B 7234 6055 175 175 2.42% 2.89%
C 7234 6054 1343 1343 18.57% 22.18%
D 7233 6053 5232 5232 72.34% 86.44%

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 6 162 523696 3276.24 639 623 159.7
A 4 95 194350 1213.4 639 623 159.7
A 14 254 179122 1118.02 639 623 159.7
B 5 172 404015 3016.48 628 607 133.7
B 4 81 319781 2386.62 628 607 133.7
B 0 216 207096 1544.02 628 607 133.7
C 15 224 3552322 22966.86 555 552 154.6
C 15 193 607394 3924.03 555 552 154.6
C 15 199 564582 3647.19 555 552 154.6
D 15 94 6449490 78119.01 283 271 82.6
D 6 42 4642638 56232.72 283 271 82.6
D 12 3 983398 11908.56 283 271 82.6

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