ASTROSAT CZTI

Data Quality Report

Orbit 07182

Creation date: 2024-06-27T15:16:46.501864
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/AS1A02_176T01_9000000980_07182cztM0_level2.evt modeM0/AS1A02_176T01_9000000980_07182cztM0_level2_quad_clean.evt
Size (bytes)513,809,280129,643,200
Size490.0 MB 123.6 MB
Events in quadrant A3,250,750864,284
Events in quadrant B3,527,946886,847
Events in quadrant C3,204,178864,694
Events in quadrant D5,086,068806,557

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148374
B0152703
C0148293
D0199013

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72281862.573326%
B72282092.891533%
C72281602.213614%
D72283234.468733%

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 7718 7228 0 0 0.00% 0.00%
B 7718 7229 0 0 0.00% 0.00%
C 7718 7229 0 0 0.00% 0.00%
D 7718 7229 107 107 1.39% 1.48%

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 15 21803 124.85 831 811 168.1
A 14 238 14490 81.36 831 811 168.1
A 14 111 14419 80.93 831 811 168.1
B 0 219 105756 660.05 841 821 159.0
B 0 214 92737 578.16 841 821 159.0
B 4 239 20409 123.21 841 821 159.0
C 13 61 6352 29.3 817 818 188.9
C 8 128 5239 23.41 817 818 188.9
C 10 22 5042 22.37 817 818 188.9
D 8 195 981192 4977.9 802 774 197.0
D 2 216 676626 3431.52 802 774 197.0
D 14 34 216268 1094.13 802 774 197.0

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