ASTROSAT CZTI

Data Quality Report

Orbit 14895

Creation date: 2024-06-27T17:01:01.565372
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/AS1T02_054T01_9000002200_14895cztM0_level2.evt modeM0/AS1T02_054T01_9000002200_14895cztM0_level2_quad_clean.evt
Size (bytes)208,376,64040,498,560
Size198.7 MB 38.6 MB
Events in quadrant A1,328,758260,114
Events in quadrant B1,853,600253,300
Events in quadrant C1,305,077259,398
Events in quadrant D1,631,452253,509

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056480
B073370
C056280
D065460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A279830.107219%
B2798953.395282%
C279800.000000%
D2799481.714898%

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 2798 2798 0 0 0.00% 0.00%
B 2798 2798 69 69 2.47% 2.47%
C 2798 2798 0 0 0.00% 0.00%
D 2799 2799 46 46 1.64% 1.64%

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 31863 458.43 335 328 68.8
A 9 143 3938 52.48 335 328 68.8
A 0 226 2999 38.83 335 328 68.8
B 10 16 237536 3826.84 324 318 62.0
B 3 64 189233 3047.61 324 318 62.0
B 0 189 65831 1056.87 324 318 62.0
C 3 233 59646 807.17 318 320 73.5
C 13 61 2424 28.63 318 320 73.5
C 14 220 1730 19.18 318 320 73.5
D 7 254 281958 3645.49 322 316 77.3
D 7 38 95426 1231.08 322 316 77.3
D 2 234 10986 138.11 322 316 77.3

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