ASTROSAT CZTI

Data Quality Report

Orbit 49684

Creation date: 2024-12-10T13:59:33.923220
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_233T01_9000006438_49684cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49684cztM0_level2_quad_clean.evt
Size (bytes)1,446,402,24054,221,760
Size1.3 GB 51.7 MB
Events in quadrant A19,426,298275,034
Events in quadrant B7,111,518737,977
Events in quadrant C8,073,1043,843
Events in quadrant D18,342,12085,006

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0629070
B0264090
C0294010
D0596630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7596743197.827804%
B759692212.137967%
C75977597100.000000%
D7597758999.894695%

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 7595 7595 7122 7122 93.77% 93.77%
B 7596 7596 708 708 9.32% 9.32%
C 7596 7596 1 1 0.01% 0.01%
D 7596 7596 6938 6938 91.34% 91.34%

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 4825439 47180.76 337 326 102.3
A 3 130 3413925 33378.74 337 326 102.3
A 0 98 2584617 25269.63 337 326 102.3
B 4 206 946071 5708.01 778 753 165.6
B 10 44 714312 4308.61 778 753 165.6
B 10 128 711155 4289.55 778 753 165.6
C 15 180 1694242 114438.94 25 23 14.8
C 15 190 1460253 98633.75 25 23 14.8
C 15 181 888669 60025.12 25 23 14.8
D 15 140 3571584 58940.93 126 117 60.6
D 15 40 2538213 41886.91 126 117 60.6
D 8 176 1565460 25833.3 126 117 60.6

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