ASTROSAT CZTI

Data Quality Report

Orbit 06225

Creation date: 2024-06-27T15:04:23.592532
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/AS1A02_046T01_9000000814_06225cztM0_level2.evt modeM0/AS1A02_046T01_9000000814_06225cztM0_level2_quad_clean.evt
Size (bytes)473,604,480121,783,680
Size451.7 MB 116.1 MB
Events in quadrant A4,536,897807,945
Events in quadrant B3,209,373829,652
Events in quadrant C2,921,665821,742
Events in quadrant D3,246,509788,651

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178373
B0138232
C0129782
D0139832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63151632.581156%
B63151151.821061%
C6315671.060966%
D6315891.409343%

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 7530 6315 11 11 0.15% 0.17%
B 7530 6315 19 19 0.25% 0.30%
C 7530 6315 0 0 0.00% 0.00%
D 7530 6316 18 18 0.24% 0.28%

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 34 1516050 10009.43 752 737 151.4
A 0 31 59821 390.28 752 737 151.4
A 8 15 49065 319.23 752 737 151.4
B 15 204 65210 454.95 762 744 141.7
B 15 54 44933 311.85 762 744 141.7
B 0 214 43601 302.45 762 744 141.7
C 9 16 6721 35.08 745 750 170.2
C 1 16 6150 31.72 745 750 170.2
C 13 61 5822 29.8 745 750 170.2
D 2 63 199256 1111.67 743 719 178.6
D 12 221 71321 395.32 743 719 178.6
D 5 97 53831 297.39 743 719 178.6

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