ASTROSAT CZTI

Data Quality Report

Orbit 29093

Creation date: 2024-06-27T20:00:28.442761
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/AS1T03_275T01_9000004180_29093cztM0_level2.evt modeM0/AS1T03_275T01_9000004180_29093cztM0_level2_quad_clean.evt
Size (bytes)577,549,44082,984,320
Size550.8 MB 79.1 MB
Events in quadrant A3,573,284537,704
Events in quadrant B3,758,789543,429
Events in quadrant C4,165,605499,391
Events in quadrant D5,556,196481,491

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147532
B0152532
C0169342
D0210202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6458721.114896%
B64581181.827191%
C64591211.873355%
D64593996.177427%

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 7728 6459 0 0 0.00% 0.00%
B 7728 6459 33 33 0.43% 0.51%
C 7729 6460 8 8 0.10% 0.12%
D 7729 6460 330 330 4.27% 5.11%

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 12371 63.38 924 910 180.8
A 0 226 7990 39.15 924 910 180.8
A 3 137 7579 36.88 924 910 180.8
B 5 255 120290 713.39 910 894 167.4
B 5 172 32415 188.34 910 894 167.4
B 12 111 18662 106.16 910 894 167.4
C 3 233 624789 3180.36 854 862 196.2
C 14 238 142024 719.55 854 862 196.2
C 2 16 46843 234.38 854 862 196.2
D 8 195 1224959 6126.47 859 841 199.8
D 1 52 638389 3190.8 859 841 199.8
D 12 233 325692 1625.82 859 841 199.8

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