ASTROSAT CZTI

Data Quality Report

Orbit 05527

Creation date: 2024-06-27T14:56:18.321087
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_199T01_9000000708_05527cztM0_level2.evt modeM0/AS1A02_199T01_9000000708_05527cztM0_level2_quad_clean.evt
Size (bytes)447,946,560101,963,520
Size427.2 MB 97.2 MB
Events in quadrant A3,078,924683,035
Events in quadrant B3,616,836676,891
Events in quadrant C3,133,981644,320
Events in quadrant D3,288,475624,346

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135942
B0150261
C0138411
D0143311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6588741.123254%
B6588881.335762%
C6588460.698239%
D6588761.153613%

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 7763 6589 4 4 0.05% 0.06%
B 7763 6589 23 23 0.30% 0.35%
C 7763 6589 1 1 0.01% 0.02%
D 7763 6589 20 20 0.26% 0.30%

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 0 50 22215 135.8 789 773 157.9
A 0 226 7961 45.52 789 773 157.9
A 12 194 7785 44.41 789 773 157.9
B 15 204 223872 1507.02 786 771 148.0
B 10 16 136414 916.25 786 771 148.0
B 4 48 47631 316.53 786 771 148.0
C 1 241 151865 877.72 753 755 172.2
C 1 16 26008 146.68 753 755 172.2
C 13 250 10268 55.25 753 755 172.2
D 2 152 147593 803.71 759 734 182.7
D 2 63 92713 503.37 759 734 182.7
D 2 14 40528 217.78 759 734 182.7

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