ASTROSAT CZTI

Data Quality Report

Orbit 11614

Creation date: 2024-06-27T16:15:55.553097
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/AS1C03_020T01_9000001706_11614cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11614cztM0_level2_quad_clean.evt
Size (bytes)625,259,52091,569,600
Size596.3 MB 87.3 MB
Events in quadrant A6,113,435566,357
Events in quadrant B4,850,085576,067
Events in quadrant C3,188,662586,274
Events in quadrant D4,304,611550,779

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229541
B0191081
C0145171
D0178791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70875958.395654%
B70874005.644137%
C7087110.155214%
D70872793.936786%

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 7363 7089 338 338 4.59% 4.77%
B 7363 7089 212 212 2.88% 2.99%
C 7363 7089 0 0 0.00% 0.00%
D 7363 7089 239 239 3.25% 3.37%

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 8 5 2566398 14994.61 829 810 171.1
A 1 162 117170 680.07 829 810 171.1
A 1 178 64624 372.96 829 810 171.1
B 4 239 1203596 7398.38 837 813 162.6
B 10 16 154678 946.43 837 813 162.6
B 3 64 132237 808.39 837 813 162.6
C 13 61 6048 27.35 817 820 191.1
C 12 4 3594 14.51 817 820 191.1
C 3 202 2085 6.62 817 820 191.1
D 13 104 374063 1923.49 805 783 194.1
D 1 52 335078 1722.6 805 783 194.1
D 10 253 264577 1359.32 805 783 194.1

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