ASTROSAT CZTI

Data Quality Report

Orbit 11106

Creation date: 2024-06-27T16:08:22.671692
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_071T02_9000001620_11106cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11106cztM0_level2_quad_clean.evt
Size (bytes)763,073,28086,518,080
Size727.7 MB 82.5 MB
Events in quadrant A7,067,607494,133
Events in quadrant B4,937,630517,895
Events in quadrant C4,156,563517,276
Events in quadrant D6,362,598490,039

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267593
B0200872
C0182492
D0247352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A864289910.402685%
B86426337.324693%
C86423053.529276%
D8642108112.508679%

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 8907 8643 273 273 3.07% 3.16%
B 8907 8644 82 82 0.92% 0.95%
C 8907 8644 4 4 0.04% 0.05%
D 8907 8643 641 641 7.20% 7.42%

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 2749092 12513.19 1058 1030 219.6
A 8 15 98305 442.94 1058 1030 219.6
A 15 174 70755 317.49 1058 1030 219.6
B 4 239 368388 1768.41 1074 1044 207.7
B 10 16 150956 721.68 1074 1044 207.7
B 15 204 77586 368.48 1074 1044 207.7
C 9 54 26849 104.71 1052 1054 246.3
C 8 128 14092 52.93 1052 1054 246.3
C 8 112 8546 30.41 1052 1054 246.3
D 10 253 2129802 8892.18 983 951 239.4
D 1 52 192436 799.83 983 951 239.4
D 10 157 68926 283.93 983 951 239.4

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