ASTROSAT CZTI

Data Quality Report

Orbit 27212

Creation date: 2024-06-27T19:37:46.136876
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/AS1T03_243T01_9000003918_27212cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27212cztM0_level2_quad_clean.evt
Size (bytes)529,934,400110,102,400
Size505.4 MB 105.0 MB
Events in quadrant A3,304,534764,996
Events in quadrant B3,759,051757,840
Events in quadrant C3,212,314712,435
Events in quadrant D5,363,162676,693

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136260
B0150540
C0133020
D0200770

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6049851.405191%
B60491893.124483%
C6048921.521164%
D60485448.994709%

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 7394 6050 3 3 0.04% 0.05%
B 7394 6050 55 55 0.74% 0.91%
C 7393 6049 0 0 0.00% 0.00%
D 7393 6049 402 402 5.44% 6.65%

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 13 248 10805 59.6 849 838 167.2
A 13 254 10211 56.05 849 838 167.2
A 0 13 8946 48.48 849 838 167.2
B 3 64 421809 2732.49 829 813 154.1
B 15 33 66733 427.86 829 813 154.1
B 12 111 17577 108.81 829 813 154.1
C 14 238 131507 717.0 788 792 182.3
C 13 61 5395 25.25 788 792 182.3
C 15 208 5212 24.24 788 792 182.3
D 1 52 1806357 9435.33 783 767 191.4
D 2 250 338797 1766.42 783 767 191.4
D 12 17 129886 674.73 783 767 191.4

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