ASTROSAT CZTI

Data Quality Report

Orbit 14207

Creation date: 2024-06-27T16:51:53.084097
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/AS1C03_022T01_9000002098_14207cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14207cztM0_level2_quad_clean.evt
Size (bytes)1,168,289,280164,640,960
Size1.1 GB 157.0 MB
Events in quadrant A6,552,3471,096,412
Events in quadrant B6,869,4971,077,937
Events in quadrant C6,305,2551,045,890
Events in quadrant D14,787,085876,813

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278414
B0289833
C0266323
D0528673

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02600
B02600
C02600
D02600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12859730.567696%
B128591841.430904%
C12859370.287736%
D12859289322.497861%

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 14190 12862 10 10 0.07% 0.08%
B 14190 12862 52 52 0.37% 0.40%
C 14190 12862 0 0 0.00% 0.00%
D 14189 12861 2327 2327 16.40% 18.09%

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 340489 1068.44 1549 1514 317.3
A 12 189 139667 435.46 1549 1514 317.3
A 9 143 79258 245.05 1549 1514 317.3
B 0 182 220867 743.03 1539 1503 295.2
B 0 85 164406 551.79 1539 1503 295.2
B 4 97 138960 465.6 1539 1503 295.2
C 3 233 500342 1441.05 1486 1492 346.2
C 13 61 10743 26.72 1486 1492 346.2
C 0 207 9597 23.41 1486 1492 346.2
D 13 122 4616513 14466.68 1320 1291 319.0
D 10 157 1634183 5118.4 1320 1291 319.0
D 5 222 1257649 3938.13 1320 1291 319.0

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