ASTROSAT CZTI

Data Quality Report

Orbit 26330

Creation date: 2024-06-27T19:27:33.127622
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_008T02_9000003796_26330cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26330cztM0_level2_quad_clean.evt
Size (bytes)544,852,800128,972,160
Size519.6 MB 123.0 MB
Events in quadrant A3,177,404880,803
Events in quadrant B3,262,916909,252
Events in quadrant C4,271,533851,575
Events in quadrant D5,366,797829,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132290
B0134370
C0166080
D0201840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6228380.610148%
B6228560.899165%
C62283956.342325%
D62283505.619782%

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 7553 6229 0 0 0.00% 0.00%
B 7553 6229 2 2 0.03% 0.03%
C 7553 6229 162 162 2.14% 2.60%
D 7553 6229 209 209 2.77% 3.36%

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 9406 52.57 824 810 163.5
A 3 137 7052 38.18 824 810 163.5
A 0 226 7025 38.01 824 810 163.5
B 12 111 17716 111.74 826 807 151.3
B 11 111 15957 100.11 826 807 151.3
B 0 230 15401 96.44 826 807 151.3
C 3 233 1034496 5631.51 793 800 183.6
C 14 238 130879 708.66 793 800 183.6
C 2 16 15627 80.77 793 800 183.6
D 1 52 2226137 11937.65 794 778 186.4
D 12 227 110491 588.54 794 778 186.4
D 2 234 24139 125.32 794 778 186.4

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