ASTROSAT CZTI

Data Quality Report

Orbit 27934

Creation date: 2024-06-27T19:46:08.602558
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/AS1A10_049T01_9000004032_27934cztM0_level2.evt modeM0/AS1A10_049T01_9000004032_27934cztM0_level2_quad_clean.evt
Size (bytes)561,913,92078,396,480
Size535.9 MB 74.8 MB
Events in quadrant A3,142,369510,534
Events in quadrant B3,695,942505,554
Events in quadrant C4,554,671468,012
Events in quadrant D5,213,307465,254

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131940
B0148320
C0175440
D0197770

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6075550.905350%
B60761983.258723%
C60764146.813693%
D60763635.974325%

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 7255 6075 0 0 0.00% 0.00%
B 7256 6076 116 116 1.60% 1.91%
C 7256 6076 183 183 2.52% 3.01%
D 7256 6076 271 271 3.73% 4.46%

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 13 254 10471 60.22 813 799 160.6
A 3 137 7235 40.07 813 799 160.6
A 0 226 6961 38.37 813 799 160.6
B 10 245 484775 3300.58 793 775 146.6
B 0 230 55332 372.05 793 775 146.6
B 0 190 19764 129.49 793 775 146.6
C 2 16 1295731 7372.59 760 767 175.6
C 3 233 165697 938.99 760 767 175.6
C 14 238 124739 705.81 760 767 175.6
D 1 52 1478970 8126.52 774 755 181.9
D 8 195 473695 2600.0 774 755 181.9
D 7 80 190319 1042.13 774 755 181.9

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