ASTROSAT CZTI

Data Quality Report

Orbit 19376

Creation date: 2024-06-27T18:02:06.864159
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/AS1A05_226T06_9000002864_19376cztM0_level2.evt modeM0/AS1A05_226T06_9000002864_19376cztM0_level2_quad_clean.evt
Size (bytes)764,159,04073,296,000
Size728.8 MB 69.9 MB
Events in quadrant A3,450,808458,312
Events in quadrant B3,652,016461,805
Events in quadrant C3,499,122440,332
Events in quadrant D12,054,182356,865

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147412
B0152112
C0147372
D0408273

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7196690.958866%
B7197921.278310%
C7197911.264416%
D7196270337.562535%

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 8926 7196 0 0 0.00% 0.00%
B 8927 7197 9 9 0.10% 0.13%
C 8927 7197 0 0 0.00% 0.00%
D 8926 7196 2351 2351 26.34% 32.67%

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 7952 39.28 893 874 180.2
A 0 226 7628 37.48 893 874 180.2
A 3 137 7212 35.17 893 874 180.2
B 7 220 85467 493.69 889 864 171.4
B 0 198 30082 170.5 889 864 171.4
B 12 111 20961 117.27 889 864 171.4
C 14 238 132789 657.29 850 854 200.7
C 7 220 33710 163.69 850 854 200.7
C 3 233 17625 83.55 850 854 200.7
D 10 66 7674207 40894.3 766 744 187.6
D 11 176 627066 3337.87 766 744 187.6
D 7 238 599956 3193.39 766 744 187.6

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