ASTROSAT CZTI

Data Quality Report

Orbit 11003

Creation date: 2024-06-27T16:06:48.031635
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/AS1G08_027T06_9000001594_11003cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_11003cztM0_level2_quad_clean.evt
Size (bytes)554,520,960102,585,600
Size528.8 MB 97.8 MB
Events in quadrant A3,774,181665,083
Events in quadrant B4,615,987663,903
Events in quadrant C3,377,969655,422
Events in quadrant D4,530,957614,634

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160893
B0183562
C0151352
D0183302

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72901802.469136%
B72903544.855967%
C7290680.932785%
D72912193.003703%

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 7885 7291 24 24 0.30% 0.33%
B 7885 7290 116 116 1.47% 1.59%
C 7885 7291 0 0 0.00% 0.00%
D 7886 7292 102 102 1.29% 1.40%

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 262700 1424.06 903 883 183.9
A 14 254 20476 106.57 903 883 183.9
A 0 226 8553 41.72 903 883 183.9
B 4 239 937687 5497.94 893 873 170.4
B 0 214 64826 375.33 893 873 170.4
B 0 219 36140 206.97 893 873 170.4
C 13 61 6443 27.61 864 870 201.8
C 8 222 4372 17.35 864 870 201.8
C 14 67 3375 12.41 864 870 201.8
D 1 52 593381 2835.55 858 835 209.0
D 10 253 291407 1390.5 858 835 209.0
D 11 129 113384 538.59 858 835 209.0

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