ASTROSAT CZTI

Data Quality Report

Orbit 07729

Creation date: 2024-06-27T15:23:14.213515
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/AS1G06_064T01_9000001066_07729cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07729cztM0_level2_quad_clean.evt
Size (bytes)412,954,56087,978,240
Size393.8 MB 83.9 MB
Events in quadrant A2,931,769567,652
Events in quadrant B2,973,362578,396
Events in quadrant C3,261,666561,254
Events in quadrant D2,931,872538,253

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124242
B0124771
C0134451
D0125561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5993530.884365%
B5993520.867679%
C5993871.451694%
D5993510.850993%

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 7268 5994 1 1 0.01% 0.02%
B 7268 5994 0 0 0.00% 0.00%
C 7268 5994 36 36 0.50% 0.60%
D 7268 5993 7 7 0.10% 0.12%

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 14 111 16565 104.1 752 734 152.1
A 15 234 9672 58.77 752 734 152.1
A 0 226 7168 42.31 752 734 152.1
B 0 214 20660 140.44 753 737 141.9
B 4 239 14154 94.58 753 737 141.9
B 12 111 13301 88.57 753 737 141.9
C 9 68 372141 2180.11 739 744 170.4
C 13 61 5702 29.1 739 744 170.4
C 10 22 5408 27.38 739 744 170.4
D 13 104 44504 241.4 740 718 181.4
D 2 152 40854 221.27 740 718 181.4
D 7 55 28363 152.41 740 718 181.4

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