ASTROSAT CZTI

Data Quality Report

Orbit 20230412_C07_001T10_9000005566_level2

Creation date: 2023-04-18T14:24:27.399046
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/AS1C07_001T10_9000005566cztM0_level2.fits modeM0/AS1C07_001T10_9000005566cztM0_level2_quad_clean.evt
Size (bytes)678,962,880858,366,720
Size647.5 MB 818.6 MB
Events in quadrant A4,206,5805,786,184
Events in quadrant B4,050,8185,819,780
Events in quadrant C3,688,5664,503,930
Events in quadrant D3,125,8164,410,679

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03020
B03020
C03020
D03020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01741050
B01786160
C03213500
D02377140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016300
B016300
C016300
D016300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A798572860.358140%
B7985715131.894637%
C798571740621.796461%
D798571598720.019535%

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 109940 79852 0 0 0.00% 0.00%
B 109940 79789 0 0 0.00% 0.00%
C 109939 79529 0 0 0.00% 0.00%
D 109939 79318 0 0 0.00% 0.00%

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 9 19 3528 8.94 1097 1028 279.7
A 7 110 3403 8.49 1097 1028 279.7
A 0 29 3364 8.35 1097 1028 279.7
B 2 9 3433 11.71 1071 1022 205.8
B 5 128 2913 9.18 1071 1022 205.8
B 3 17 2813 8.7 1071 1022 205.8
C 1 81 3064 8.54 974 911 252.0
C 3 203 2996 8.27 974 911 252.0
C 3 202 2995 8.27 974 911 252.0
D 7 3 2492 6.22 907 822 268.4
D 4 160 2347 5.68 907 822 268.4
D 3 14 2318 5.57 907 822 268.4

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