ASTROSAT CZTI

Data Quality Report

Orbit 06290

Creation date: 2024-06-27T15:05:14.492431
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/AS1A02_118T01_9000000826_06290cztM0_level2.evt modeM0/AS1A02_118T01_9000000826_06290cztM0_level2_quad_clean.evt
Size (bytes)1,568,134,080274,812,480
Size1.5 GB 262.1 MB
Events in quadrant A10,019,9421,795,333
Events in quadrant B11,532,7231,785,346
Events in quadrant C8,001,8721,792,752
Events in quadrant D16,676,3051,661,893

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03820
B03820
C03820
D03820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0419025
B0473404
C0377624
D0624964

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18691780.417313%
B186919545.104061%
C18691580.310310%
D1869113557.249478%

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 20911 18694 0 0 0.00% 0.00%
B 20911 18693 518 518 2.48% 2.77%
C 20911 18694 4 4 0.02% 0.02%
D 20911 18692 1055 1055 5.05% 5.64%

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 8 15 1579140 3694.0 2082 2031 426.9
A 15 236 379367 883.82 2082 2031 426.9
A 0 226 20207 42.57 2082 2031 426.9
B 3 64 2196820 5623.18 2068 2015 390.3
B 0 219 552687 1410.84 2068 2015 390.3
B 15 204 483405 1233.34 2068 2015 390.3
C 9 54 51965 106.59 2033 2039 468.4
C 13 61 16103 30.02 2033 2039 468.4
C 1 16 14212 25.99 2033 2039 468.4
D 2 63 5171465 10772.4 1974 1909 479.9
D 12 220 2110688 4394.31 1974 1909 479.9
D 2 152 670694 1393.62 1974 1909 479.9

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