ASTROSAT CZTI

Data Quality Report

Orbit 41344

Creation date: 2024-06-27T22:27:54.877329
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/AS1T05_105T01_9000005658_41344cztM0_level2.fits modeM0/AS1T05_105T01_9000005658_41344cztM0_level2_quad_clean.evt
Size (bytes)1,329,410,880319,187,520
Size1.2 GB 304.4 MB
Events in quadrant A9,894,6642,201,352
Events in quadrant B9,631,0562,238,170
Events in quadrant C10,315,1902,129,042
Events in quadrant D17,862,0791,754,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08412
B0825
C0846
D0806

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042018
B042220
C041922
D041823

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0438562609
B0443142206
C0454652639
D0714114560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19489250.128277%
B195001890.969231%
C195264532.319984%
D19345243212.571724%

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 30678 19868 10 10 0.03% 0.05%
B 30678 19911 137 137 0.45% 0.69%
C 30678 19873 439 439 1.43% 2.21%
D 30678 19754 2558 2558 8.34% 12.95%

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 10 83 1478224 3372.82 2150 2109 437.7
A 2 79 41282 89.51 2150 2109 437.7
A 7 3 41112 89.12 2150 2109 437.7
B 5 255 822478 2025.27 2135 2081 405.1
B 0 190 327736 803.93 2135 2081 405.1
B 0 229 71578 171.56 2135 2081 405.1
C 0 10 1328228 2779.61 2060 2078 477.1
C 15 214 803219 1679.19 2060 2078 477.1
C 2 16 39194 77.8 2060 2078 477.1
D 1 47 3105237 6542.92 1950 1897 474.3
D 1 52 2639665 5561.33 1950 1897 474.3
D 13 249 1883569 3967.22 1950 1897 474.3

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