ASTROSAT CZTI

Data Quality Report

Orbit 14699

Creation date: 2024-06-27T16:58:37.555047
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_057T09_9000002174_14699cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14699cztM0_level2_quad_clean.evt
Size (bytes)952,364,160143,697,600
Size908.2 MB 137.0 MB
Events in quadrant A6,165,685886,445
Events in quadrant B6,890,795877,054
Events in quadrant C9,215,447855,210
Events in quadrant D5,718,964862,603

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02540
B02540
C02540
D02540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262873
B0286022
C0373242
D0260592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126011140.904690%
B126015074.023490%
C126011100.872947%
D12601670.531704%

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 13922 12602 5 5 0.04% 0.04%
B 13922 12602 370 370 2.66% 2.94%
C 13922 12603 0 0 0.00% 0.00%
D 13922 12603 11 11 0.08% 0.09%

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 12 189 207248 691.67 1488 1455 297.5
A 8 15 177147 590.5 1488 1455 297.5
A 11 29 19848 61.82 1488 1455 297.5
B 10 16 1063886 3788.98 1459 1419 280.4
B 0 205 38578 132.52 1459 1419 280.4
B 12 111 33414 114.1 1459 1419 280.4
C 3 233 3568893 10699.32 1435 1440 333.4
C 3 234 36526 105.23 1435 1440 333.4
C 13 61 10405 26.89 1435 1440 333.4
D 12 110 156973 454.91 1441 1407 342.0
D 2 120 50030 142.19 1441 1407 342.0
D 2 234 49467 140.54 1441 1407 342.0

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