Leonids 1998: Observational Results!

Sino-Dutch Leonid Expedition 1998

Team "DELINGHA": grouppictures

1. In and around Xining
2. On the way from Xining to Delingha
3. Official groupphoto of team Delingha
4. Ulan secondary station
5. Technical equipment
6. Delingha Radio Observatory
7. The observations
8. The party

(Last updated: 98-12-17)

1. In and around Xining

Part of team Delingha on their return flight from Xining to Beijing, which was delayed by many hours due to heavy snowfall in Beijing.
Despite all stories, this Russian made "Tupolev" aircraft, turned out to be an excellent machine, especially when maintained and flown by Chinese people!
Left to right: Carl Johannink, Romke Schievink, Arnold Tukkers, Robert Haas and Marco Langbroek.

This picture is taken from the aircraft just before landing at Xining airport.
The large sanddunes are part of the southern ridge of the Gobi desert.

We flew from Xining to Beijing with this Russian made Tupolev aircraft.
Now we now, that Russian technicians develope fine aircrafts.
And when maintained by Chinese personel you have a great plane.

The entrance hall of the Qinghai Hotel in Xining.
Mainly visited by important Chinese people, and occasionally foreigners like us.
The Qinghai hotel is quite luxurious and can be well compared with western hotels like the Hilton.

Team Delingha having dinner at the Quinhai hotel in Xining.
Counterclockwise around the table are: Jos Nijland, Arnold Tukkers, Carl Johannink, Romke Schievink, Marc de Lignie, Robert Haas, Marco Langbroek and Koen Miskotte.

2. On the way from Xining to Delingha

Somewhere between Xining and Delingha with lake Quinhai in the background.
From left to right are: Romke Schievink, Casper ter Kuile, Marc de Lignie, Marco Langbroek, Jos Nijland, Arnold Tukkers, Robert Haas and sitting down our Chinese truckdriver, Carl Johannink and Koen Miskotte.

On our way to Delingha, we passed this streetmarket in a little village west of Xining.

During a 10 hour trip from Xining to Delingha people get hungry.
Our Chinese counterpart arranged a nice and welcome meal in the middle of the desert in this little village.

Jos Nijland (left) and Arnold Tukkers (right) having lunch at the restaurant somewhere between Xining and Delingha.

The house of a nomad family living in the Qinghai desert.
Notice that the major part of the house is below ground level.

A desert is supposed to be empty and consists solely of sand.
Well... we now know that the Qinghai desert is not at all empty.
Lots of yaks and sheep are walking around and are herded by nomads.

A man carrying his baby covered in some sort of sleeping bag on a kind of wheelchair.

3. Official groupphoto of team Delingha

Official group photo of team Delingha with Dr. Lei Chengming of the Delingha Radio Observatory and Zhao Haibin, student at PMO and observing equipment.

Teammembers (left to right): Romke Schievink, Marc de Lignie, Robert Haas (kneeling), Zhao Haibin, Arnold Tukkers, Marco Langbroek, Jos Nijland, Koen Miskotte, Lei Chengming, Casper ter Kuile (kneeling) and Carl Johannink.

Equipment (left to right): Image intensifier system of Romke Schievink, 50 mm and 85 mm camerabattery of Robert Haas, wide angle image intensifier system of Marc de Lignie, power generator, 85 mm and 50 mm camera battery of Casper ter Kuile, image intensifier system of Carl Johannink and Casper ter Kuile.

Robert Haas (left) and Casper ter Kuile (right) pose with the technical equipment of team Delingha.

Zhao Harbin and a technician of Delingha Radio Observatory posing with the equipment of team Delingha in front of the Observatory.

4. Ulan secondary station

The main entrance of "Ulan City", the secondary station of the Delingha team.
This building was used by roadworkers who build the new main road from Xining to Delingha.

This is a view from the inside of the building.
We set up our equipment at the left hand side of the platform.
Visual observers chose a location most suitable with respect to the winddirection and the viewing direction.

Technical equipment of secundary station "Ulan".
Top center is the image intensifier system, at left the auxiliary materials flightcase, to the right of the image intensifier is its flightcase, at far right the 85 mm photographic project, at right center the 50 mm photographic project, at the bottom is the top-casing of the 50 mm project.
All equipment is powered by a power generator, which is located at the other side of the compound.
Each night temperatures dropped to -15 / -20 degrees centigrade, which proved to be rather cold.
So first thing to do when getting out of the warm truck, was setting up all equipment as quickly as possible.

The van, which carried the team to the secondary station at Ulan, which is located 65 kilometers to the south-east of Delingha, an 1 hour drive.

5. Technical equipment

Photographic equipment of team Delingha in the instrument room of Delingha Radio Observatory.
From left to right: one of the 50 mm projects consisting of 11 Canon T-70's equipped with 1.8/50 mm lenses, both 85 mm projects consisting of 5 Canon T-70's equipped with 1.8/85 mm lenses.
To obtain a high accuracy the 6 and 8 blade sectors have been cut by laser.

All four camera batteries of team Delingha ready for action in the equipment room of the observatory.

View on Roberts 50 mm project (center) and the Polaris mounting at left.
This mounting followed the stars and Robert mounted 2 camera's on it which made nice pictures.

The photographical and video-equipment set up at Delingha Radio Observatory.
From left to right: the 50 mm project, the 85 mm project, the video-flightcase and the image intensifier.
The photographical systems are set up by Robert Haas, the image intensifier by Romke Schievink.

The films for photographing at one location with the 50 and 85 mm projects, during the nights 16/17, 17/18 and 18/19.
Every film and cassette is marked with camera number, date and location (Delingha or Ulan).

Robert Haas and Casper ter Kuile in the instrument room, preparing the equipment.

Robert Haas checking one of the 85 mm camera-batteries.

Casper ter Kuile preparing the image intensifier system.

Robert Haas and Casper ter Kuile preparing the photographic equipment for multistation work using a compass and a level.

This is our Magallan GPS receiver which produced the coordinates of our observing locations at Delingha Radio Observatory and Ulan City.
The computed geographical coordinates are correct to about 50 meters which corresponds to about 2 arcseconds.

6. Delingha Radio Observatory

Delingha Radio Station in the Qinghai desert.

Members of team Delingha in the restaurant of the Delingha Radio Observatory.
From left to right are: Robert Haas, Zhao Harbin, Romke Schievink, Marco Langbroek, Jos Nijland, Marc de Lignie, Carl Johannink, Arnold Tukkers and Koen Miskotte.

Robert Haas discusses technical matters with Zhao Harbin during dinner at the Delingha Radio Observatory.

7. The observations

Visual observers Koen Miskotte, Marco Langbroek and Carl Johannink at Delingha, packed like mummies to withstand temperatures of -15 to -20 centigrade.

Visual Observer Carl Johannink processing last nights' observations which have been recorded on tape.

Casper ter Kuile, Marc de Lignie, Marco Langbroek and Robert Haas after another successful night.

8. The party

Team Delingha was offered this magnificent cake, by the people of Delingha Radio Observatory because of the highly successful Sino-Dutch Leonid Expedition 1998!
Please wait for more pictures taken at the farewell party.

Team Delingha sang several well known Dutch songs.
Left to right: Arnold Tukkers, Carl Johannink, Robert Haas, Marco Langbroek, Marc de Lignie, Romke Schievink, Jos Nijland and Zhao Harbin.

Zhao Harbin explains one of the presents which are handed over by Marc de Lignie to the cook of the Delingha Radio Observatory.

Zhao Harbin and his gift from team Delingha: a specially designed sweater with the logo of the Sino-Dutch Leonid Expedition 1998.

Director Lei Chengming of the Delingha Radio Observatory with his Sino-Dutch Leonid Expedition 1998 sweater.

All photo's made by Casper ter Kuile with a Canon T-90 except for the last 10 photo's which are made by Romke Schievink with a digital Sony camera type MVC-FD7

With thanks to Jaap van 't Leven for helping with the text.

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back.gif This page was last modified on December 19, 1998 by
Casper ter Kuile, Marco Langbroek and Hans Betlem