ASTROSAT CZTI

Data Quality Report

Orbit 25633

Creation date: 2024-06-27T19:19:46.133445
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/AS1A09_013T02_9000003734_25633cztM0_level2.evt modeM0/AS1A09_013T02_9000003734_25633cztM0_level2_quad_clean.evt
Size (bytes)454,847,040108,630,720
Size433.8 MB 103.6 MB
Events in quadrant A3,282,917719,727
Events in quadrant B3,201,969746,072
Events in quadrant C3,207,118708,955
Events in quadrant D3,657,274677,919

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136530
B0135070
C0135940
D0151300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6265250.399042%
B6265340.542698%
C6265751.197127%
D6265741.181165%

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 7555 6266 0 0 0.00% 0.00%
B 7555 6266 0 0 0.00% 0.00%
C 7555 6266 0 0 0.00% 0.00%
D 7555 6266 43 43 0.57% 0.69%

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 8 192 182286 1146.32 801 787 158.3
A 0 13 11101 65.14 801 787 158.3
A 13 254 9728 56.47 801 787 158.3
B 12 111 17736 113.9 811 793 148.8
B 11 111 15751 100.55 811 793 148.8
B 14 111 14062 89.2 811 793 148.8
C 14 238 127678 699.8 788 796 181.3
C 3 233 8319 41.49 788 796 181.3
C 13 61 5509 25.99 788 796 181.3
D 8 195 424343 2270.25 781 761 186.6
D 13 104 114265 608.34 781 761 186.6
D 1 52 77392 410.72 781 761 186.6

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