ASTROSAT CZTI

Data Quality Report

Orbit 29017

Creation date: 2024-06-27T19:59:14.257094
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_123T02_9000004160_29017cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29017cztM0_level2_quad_clean.evt
Size (bytes)246,291,84043,413,120
Size234.9 MB 41.4 MB
Events in quadrant A1,626,341275,475
Events in quadrant B1,650,545283,170
Events in quadrant C1,670,659267,338
Events in quadrant D2,291,482259,852

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068881
B069231
C070291
D090451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3215541.679627%
B3214682.115744%
C3214822.551338%
D3214852.644680%

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 4170 3216 0 0 0.00% 0.00%
B 4169 3215 2 2 0.05% 0.06%
C 4169 3215 1 1 0.02% 0.03%
D 4169 3215 31 31 0.74% 0.96%

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 1 113 9573 108.56 417 409 84.4
A 13 254 5506 60.38 417 409 84.4
A 6 16 5429 59.47 417 409 84.4
B 12 111 10168 120.61 413 403 81.0
B 11 111 9114 107.59 413 403 81.0
B 14 111 8782 103.49 413 403 81.0
C 14 238 65084 681.98 398 398 94.9
C 2 16 38401 400.66 398 398 94.9
C 2 114 7540 75.3 398 398 94.9
D 1 52 502881 5213.35 398 387 96.4
D 8 195 220574 2284.43 398 387 96.4
D 7 80 58553 603.47 398 387 96.4

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