ASTROSAT CZTI

Data Quality Report

Orbit 28365

Creation date: 2024-06-27T19:50:59.475739
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_101T02_9000004084_28365cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28365cztM0_level2_quad_clean.evt
Size (bytes)499,927,68086,160,960
Size476.8 MB 82.2 MB
Events in quadrant A2,906,799569,282
Events in quadrant B3,005,055574,505
Events in quadrant C2,861,219546,264
Events in quadrant D5,960,295499,860

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124980
B0127270
C0123410
D0217920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6006590.982351%
B6006961.598402%
C6006841.398601%
D60075969.921758%

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 6826 6006 0 0 0.00% 0.00%
B 6826 6006 22 22 0.32% 0.37%
C 6826 6007 0 0 0.00% 0.00%
D 6827 6007 453 453 6.64% 7.54%

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 15 174 67066 442.03 735 719 150.1
A 13 254 10416 64.61 735 719 150.1
A 3 137 7329 44.04 735 719 150.1
B 10 246 113091 790.94 724 704 142.1
B 12 111 17454 117.88 724 704 142.1
B 11 111 16035 107.89 724 704 142.1
C 14 238 112265 673.96 699 703 165.5
C 3 233 25033 146.98 699 703 165.5
C 13 61 4746 24.42 699 703 165.5
D 1 52 2366910 14306.14 684 667 165.4
D 8 195 483395 2918.54 684 667 165.4
D 7 238 257847 1554.89 684 667 165.4

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