ASTROSAT CZTI

Data Quality Report

Orbit 12586

Creation date: 2024-06-27T16:29:34.380406
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_130T04_9000001872_12586cztM0_level2.evt modeM0/AS1A04_130T04_9000001872_12586cztM0_level2_quad_clean.evt
Size (bytes)312,520,32039,286,080
Size298.0 MB 37.5 MB
Events in quadrant A1,822,151229,062
Events in quadrant B2,517,471230,075
Events in quadrant C1,776,404229,408
Events in quadrant D3,069,729212,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082250
B0100730
C081840
D0119820

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A408710.024468%
B40871162.838268%
C408710.024468%
D40873498.539271%

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 4088 4088 1 1 0.02% 0.02%
B 4088 4088 85 85 2.08% 2.08%
C 4088 4088 0 0 0.00% 0.00%
D 4088 4088 310 310 7.58% 7.58%

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 26751 271.8 464 453 96.8
A 12 96 8796 86.23 464 453 96.8
A 0 226 4102 37.71 464 453 96.8
B 3 64 295867 3256.95 458 446 90.7
B 4 239 285839 3146.39 458 446 90.7
B 11 51 95197 1044.61 458 446 90.7
C 8 128 7838 69.86 450 451 105.7
C 15 208 6823 60.26 450 451 105.7
C 8 112 4036 33.9 450 451 105.7
D 10 157 532603 5028.88 433 421 105.8
D 13 249 511879 4833.05 433 421 105.8
D 1 52 354043 3341.57 433 421 105.8

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