ASTROSAT CZTI

Data Quality Report

Orbit 12291

Creation date: 2024-06-27T16:25:02.992344
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/AS1A04_183T02_9000001816_12291cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12291cztM0_level2_quad_clean.evt
Size (bytes)111,470,40017,982,720
Size106.3 MB 17.1 MB
Events in quadrant A794,117108,582
Events in quadrant B995,176106,483
Events in quadrant C725,085113,009
Events in quadrant D759,488107,472

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031932
B038421
C030681
D031821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1456322.197802%
B14561339.134615%
C1456151.030220%
D1456261.785714%

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 1457 1457 0 0 0.00% 0.00%
B 1457 1457 52 52 3.57% 3.57%
C 1457 1457 0 0 0.00% 0.00%
D 1457 1457 11 11 0.75% 0.75%

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 1 162 19913 480.8 190 185 41.0
A 1 178 10247 245.23 190 185 41.0
A 1 161 8775 209.35 190 185 41.0
B 4 239 138642 3676.05 184 179 37.7
B 0 85 125199 3319.15 184 179 37.7
B 0 205 4782 122.19 184 179 37.7
C 15 208 8961 195.48 183 184 44.9
C 13 61 1408 27.26 183 184 44.9
C 4 254 1088 20.13 183 184 44.9
D 9 85 24070 520.92 182 176 45.9
D 13 112 21757 470.5 182 176 45.9
D 10 50 11911 255.84 182 176 45.9

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